/*
*  Catch v2.5.0
*  Generated: 2018-11-26 20:46:12.165372
*  ----------------------------------------------------------
*  This file has been merged from multiple headers. Please don't edit it directly
*  Copyright (c) 2018 Two Blue Cubes Ltd. All rights reserved.
*
*  Distributed under the Boost Software License, Version 1.0. (See accompanying
*  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
#define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
// start catch.hpp


#define CATCH_VERSION_MAJOR 2
#define CATCH_VERSION_MINOR 5
#define CATCH_VERSION_PATCH 0

#ifdef __clang__
#    pragma clang system_header
#elif defined __GNUC__
#    pragma GCC system_header
#endif

// start catch_suppress_warnings.h

#ifdef __clang__
#   ifdef __ICC // icpc defines the __clang__ macro
#       pragma warning(push)
#       pragma warning(disable: 161 1682)
#   else // __ICC
#       pragma clang diagnostic push
#       pragma clang diagnostic ignored "-Wpadded"
#       pragma clang diagnostic ignored "-Wswitch-enum"
#       pragma clang diagnostic ignored "-Wcovered-switch-default"
#    endif
#elif defined __GNUC__
// GCC likes to warn on REQUIREs, and we cannot suppress them
// locally because g++'s support for _Pragma is lacking in older,
// still supported, versions
#    pragma GCC diagnostic ignored "-Wparentheses"
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wunused-variable"
#    pragma GCC diagnostic ignored "-Wpadded"
#endif
// end catch_suppress_warnings.h
#if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
#  define CATCH_IMPL
#  define CATCH_CONFIG_ALL_PARTS
#endif

// In the impl file, we want to have access to all parts of the headers
// Can also be used to sanely support PCHs
#if defined(CATCH_CONFIG_ALL_PARTS)
#  define CATCH_CONFIG_EXTERNAL_INTERFACES
#  if defined(CATCH_CONFIG_DISABLE_MATCHERS)
#    undef CATCH_CONFIG_DISABLE_MATCHERS
#  endif
#  if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#    define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#  endif
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)
// start catch_platform.h

#ifdef __APPLE__
# include <TargetConditionals.h>
# if TARGET_OS_OSX == 1
#  define CATCH_PLATFORM_MAC
# elif TARGET_OS_IPHONE == 1
#  define CATCH_PLATFORM_IPHONE
# endif

#elif defined(linux) || defined(__linux) || defined(__linux__)
#  define CATCH_PLATFORM_LINUX

#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) || defined(__MINGW32__)
#  define CATCH_PLATFORM_WINDOWS
#endif

// end catch_platform.h

#ifdef CATCH_IMPL
#  ifndef CLARA_CONFIG_MAIN
#    define CLARA_CONFIG_MAIN_NOT_DEFINED
#    define CLARA_CONFIG_MAIN
#  endif
#endif

// start catch_user_interfaces.h

namespace Catch {
	unsigned int rngSeed();
}

// end catch_user_interfaces.h
// start catch_tag_alias_autoregistrar.h

// start catch_common.h

// start catch_compiler_capabilities.h

// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
// CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
// ****************
// Note to maintainers: if new toggles are added please document them
// in configuration.md, too
// ****************

// In general each macro has a _NO_<feature name> form
// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
// Many features, at point of detection, define an _INTERNAL_ macro, so they
// can be combined, en-mass, with the _NO_ forms later.

#ifdef __cplusplus

#  if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
#    define CATCH_CPP14_OR_GREATER
#  endif

#  if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
#    define CATCH_CPP17_OR_GREATER
#  endif

#endif

#if defined(CATCH_CPP17_OR_GREATER)
#  define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#ifdef __clang__

#       define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
            _Pragma( "clang diagnostic push" ) \
            _Pragma( "clang diagnostic ignored \"-Wexit-time-destructors\"" ) \
            _Pragma( "clang diagnostic ignored \"-Wglobal-constructors\"")
#       define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
            _Pragma( "clang diagnostic pop" )

#       define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
            _Pragma( "clang diagnostic push" ) \
            _Pragma( "clang diagnostic ignored \"-Wparentheses\"" )
#       define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
            _Pragma( "clang diagnostic pop" )

#       define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
            _Pragma( "clang diagnostic push" ) \
            _Pragma( "clang diagnostic ignored \"-Wunused-variable\"" )
#       define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS \
            _Pragma( "clang diagnostic pop" )

#endif // __clang__

////////////////////////////////////////////////////////////////////////////////
// Assume that non-Windows platforms support posix signals by default
#if !defined(CATCH_PLATFORM_WINDOWS)
#define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
#endif

////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || defined(__DJGPP__)
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#endif

#ifdef __OS400__
#       define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#       define CATCH_CONFIG_COLOUR_NONE
#endif

////////////////////////////////////////////////////////////////////////////////
// Android somehow still does not support std::to_string
#if defined(__ANDROID__)
#    define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
#endif

////////////////////////////////////////////////////////////////////////////////
// Not all Windows environments support SEH properly
#if defined(__MINGW32__)
#    define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
#endif

////////////////////////////////////////////////////////////////////////////////
// PS4
#if defined(__ORBIS__)
#    define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
#endif

////////////////////////////////////////////////////////////////////////////////
// Cygwin
#ifdef __CYGWIN__

// Required for some versions of Cygwin to declare gettimeofday
// see: http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
#   define _BSD_SOURCE
// some versions of cygwin (most) do not support std::to_string. Use the libstd check.
// https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html line 2812-2813
# if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) \
	       && !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))

#	define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING

# endif
#endif // __CYGWIN__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#ifdef _MSC_VER

#  if _MSC_VER >= 1900 // Visual Studio 2015 or newer
#    define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#  endif

// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
#  if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
#    define CATCH_CONFIG_COLOUR_NONE
#  else
#    define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
#  endif

// MSVC traditional preprocessor needs some workaround for __VA_ARGS__
// _MSVC_TRADITIONAL == 0 means new conformant preprocessor
// _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
#  if !defined(_MSVC_TRADITIONAL) || (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
#    define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#  endif

#endif // _MSC_VER

////////////////////////////////////////////////////////////////////////////////
// Check if we are compiled with -fno-exceptions or equivalent
#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
#  define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
#endif

////////////////////////////////////////////////////////////////////////////////
// DJGPP
#ifdef __DJGPP__
#  define CATCH_INTERNAL_CONFIG_NO_WCHAR
#endif // __DJGPP__

////////////////////////////////////////////////////////////////////////////////
// Embarcadero C++Build
#if defined(__BORLANDC__)
#define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
#endif

////////////////////////////////////////////////////////////////////////////////

// Use of __COUNTER__ is suppressed during code analysis in
// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
// handled by it.
// Otherwise all supported compilers support COUNTER macro,
// but user still might want to turn it off
#if ( !defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L )
#define CATCH_INTERNAL_CONFIG_COUNTER
#endif

////////////////////////////////////////////////////////////////////////////////
// Check if string_view is available and usable
// The check is split apart to work around v140 (VS2015) preprocessor issue...
#if defined(__has_include)
#if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
#    define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
#endif
#endif

////////////////////////////////////////////////////////////////////////////////
// Check if variant is available and usable
#if defined(__has_include)
#  if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
#    if defined(__clang__) && (__clang_major__ < 8)
// work around clang bug with libstdc++ https://bugs.llvm.org/show_bug.cgi?id=31852
// fix should be in clang 8, workaround in libstdc++ 8.2
#      include <ciso646>
#      if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
#        define CATCH_CONFIG_NO_CPP17_VARIANT
#     else
#        define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
#      endif // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
#    endif // defined(__clang__) && (__clang_major__ < 8)
#  endif // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
#endif // __has_include

#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
#   define CATCH_CONFIG_COUNTER
#endif
#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && !defined(CATCH_CONFIG_NO_WINDOWS_SEH) && !defined(CATCH_CONFIG_WINDOWS_SEH) && !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
#   define CATCH_CONFIG_WINDOWS_SEH
#endif
// This is set by default, because we assume that unix compilers are posix-signal-compatible by default.
#if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) && !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) && !defined(CATCH_CONFIG_POSIX_SIGNALS)
#   define CATCH_CONFIG_POSIX_SIGNALS
#endif
// This is set by default, because we assume that compilers with no wchar_t support are just rare exceptions.
#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
#   define CATCH_CONFIG_WCHAR
#endif

#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) && !defined(CATCH_CONFIG_CPP11_TO_STRING)
#    define CATCH_CONFIG_CPP11_TO_STRING
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) && !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
#  define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) && !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
#  define CATCH_CONFIG_CPP17_STRING_VIEW
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && !defined(CATCH_CONFIG_NO_CPP17_VARIANT) && !defined(CATCH_CONFIG_CPP17_VARIANT)
#  define CATCH_CONFIG_CPP17_VARIANT
#endif

#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
#  define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
#endif

#if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) && !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NO_NEW_CAPTURE) && !defined(CATCH_CONFIG_NEW_CAPTURE)
#  define CATCH_CONFIG_NEW_CAPTURE
#endif

#if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
#  define CATCH_CONFIG_DISABLE_EXCEPTIONS
#endif

#if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) && !defined(CATCH_CONFIG_POLYFILL_ISNAN)
#  define CATCH_CONFIG_POLYFILL_ISNAN
#endif

#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
#   define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#   define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
#   define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
#   define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS
#endif

#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
#define CATCH_TRY if ((true))
#define CATCH_CATCH_ALL if ((false))
#define CATCH_CATCH_ANON(type) if ((false))
#else
#define CATCH_TRY try
#define CATCH_CATCH_ALL catch (...)
#define CATCH_CATCH_ANON(type) catch (type)
#endif

#if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) && !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
#define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#endif

// end catch_compiler_capabilities.h
#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
#ifdef CATCH_CONFIG_COUNTER
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
#else
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
#endif

#include <iosfwd>
#include <string>
#include <cstdint>

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy {};
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {

	struct CaseSensitive { enum Choice {
		Yes,
		No
	}; };

	class NonCopyable {
		NonCopyable( NonCopyable const& )              = delete;
		NonCopyable( NonCopyable && )                  = delete;
		NonCopyable& operator = ( NonCopyable const& ) = delete;
		NonCopyable& operator = ( NonCopyable && )     = delete;

	protected:
		NonCopyable();
		virtual ~NonCopyable();
	};

	struct SourceLineInfo {

		SourceLineInfo() = delete;
		SourceLineInfo( char const* _file, std::size_t _line ) noexcept
			:   file( _file ),
			line( _line )
		{}

		SourceLineInfo( SourceLineInfo const& other )        = default;
		SourceLineInfo( SourceLineInfo && )                  = default;
		SourceLineInfo& operator = ( SourceLineInfo const& ) = default;
		SourceLineInfo& operator = ( SourceLineInfo && )     = default;

		bool empty() const noexcept;
		bool operator == ( SourceLineInfo const& other ) const noexcept;
		bool operator < ( SourceLineInfo const& other ) const noexcept;

		char const* file;
		std::size_t line;
	};

	std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );

	// Bring in operator<< from global namespace into Catch namespace
	// This is necessary because the overload of operator<< above makes
	// lookup stop at namespace Catch
	using ::operator<<;

	// Use this in variadic streaming macros to allow
	//    >> +StreamEndStop
	// as well as
	//    >> stuff +StreamEndStop
	struct StreamEndStop {
		std::string operator+() const;
	};
	template<typename T>
	T const& operator + ( T const& value, StreamEndStop ) {
		return value;
	}
}

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )

// end catch_common.h
namespace Catch {

	struct RegistrarForTagAliases {
		RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
	};

} // end namespace Catch

#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
    namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); } \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

  // end catch_tag_alias_autoregistrar.h
  // start catch_test_registry.h

  // start catch_interfaces_testcase.h

#include <vector>
#include <memory>

namespace Catch {

	class TestSpec;

	struct ITestInvoker {
		virtual void invoke () const = 0;
		virtual ~ITestInvoker();
	};

	using ITestCasePtr = std::shared_ptr<ITestInvoker>;

	class TestCase;
	struct IConfig;

	struct ITestCaseRegistry {
		virtual ~ITestCaseRegistry();
		virtual std::vector<TestCase> const& getAllTests() const = 0;
		virtual std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const = 0;
	};

	bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );
	std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
	std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );

}

// end catch_interfaces_testcase.h
// start catch_stringref.h

#include <cstddef>
#include <string>
#include <iosfwd>

namespace Catch {

	class StringData;

	/// A non-owning string class (similar to the forthcoming std::string_view)
	/// Note that, because a StringRef may be a substring of another string,
	/// it may not be null terminated. c_str() must return a null terminated
	/// string, however, and so the StringRef will internally take ownership
	/// (taking a copy), if necessary. In theory this ownership is not externally
	/// visible - but it does mean (substring) StringRefs should not be shared between
	/// threads.
	class StringRef {
	public:
		using size_type = std::size_t;

	private:
		friend struct StringRefTestAccess;

		char const* m_start;
		size_type m_size;

		char* m_data = nullptr;

		void takeOwnership();

		static constexpr char const* const s_empty = "";

	public: // construction/ assignment
		StringRef() noexcept
			:   StringRef( s_empty, 0 )
		{}

		StringRef( StringRef const& other ) noexcept
			:   m_start( other.m_start ),
			m_size( other.m_size )
		{}

		StringRef( StringRef&& other ) noexcept
			:   m_start( other.m_start ),
			m_size( other.m_size ),
			m_data( other.m_data )
		{
			other.m_data = nullptr;
		}

		StringRef( char const* rawChars ) noexcept;

		StringRef( char const* rawChars, size_type size ) noexcept
			:   m_start( rawChars ),
			m_size( size )
		{}

		StringRef( std::string const& stdString ) noexcept
			:   m_start( stdString.c_str() ),
			m_size( stdString.size() )
		{}

		~StringRef() noexcept {
			delete[] m_data;
		}

		auto operator = ( StringRef const &other ) noexcept -> StringRef& {
			delete[] m_data;
			m_data = nullptr;
			m_start = other.m_start;
			m_size = other.m_size;
			return *this;
		}

		operator std::string() const;

		void swap( StringRef& other ) noexcept;

	public: // operators
		auto operator == ( StringRef const& other ) const noexcept -> bool;
		auto operator != ( StringRef const& other ) const noexcept -> bool;

		auto operator[] ( size_type index ) const noexcept -> char;

	public: // named queries
		auto empty() const noexcept -> bool {
			return m_size == 0;
		}
		auto size() const noexcept -> size_type {
			return m_size;
		}

		auto numberOfCharacters() const noexcept -> size_type;
		auto c_str() const -> char const*;

	public: // substrings and searches
		auto substr( size_type start, size_type size ) const noexcept -> StringRef;

		// Returns the current start pointer.
		// Note that the pointer can change when if the StringRef is a substring
		auto currentData() const noexcept -> char const*;

	private: // ownership queries - may not be consistent between calls
		auto isOwned() const noexcept -> bool;
		auto isSubstring() const noexcept -> bool;
	};

	auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string;
	auto operator + ( StringRef const& lhs, char const* rhs ) -> std::string;
	auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string;

	auto operator += ( std::string& lhs, StringRef const& sr ) -> std::string&;
	auto operator << ( std::ostream& os, StringRef const& sr ) -> std::ostream&;

	inline auto operator "" _sr( char const* rawChars, std::size_t size ) noexcept -> StringRef {
		return StringRef( rawChars, size );
	}

} // namespace Catch

inline auto operator "" _catch_sr( char const* rawChars, std::size_t size ) noexcept -> Catch::StringRef {
	return Catch::StringRef( rawChars, size );
}

// end catch_stringref.h
// start catch_type_traits.hpp


namespace Catch{

#ifdef CATCH_CPP17_OR_GREATER
	template <typename...>
	inline constexpr auto is_unique = std::true_type{};

	template <typename T, typename... Rest>
	inline constexpr auto is_unique<T, Rest...> = std::bool_constant<
		(!std::is_same_v<T, Rest> && ...) && is_unique<Rest...>
	>{};
#else

	template <typename...>
	struct is_unique : std::true_type{};

	template <typename T0, typename T1, typename... Rest>
	struct is_unique<T0, T1, Rest...> : std::integral_constant
		<bool,
		!std::is_same<T0, T1>::value
		&& is_unique<T0, Rest...>::value
		&& is_unique<T1, Rest...>::value
		>{};

#endif
}

// end catch_type_traits.hpp
// start catch_preprocessor.hpp


#define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
#define CATCH_RECURSION_LEVEL1(...) CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL2(...) CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL3(...) CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL4(...) CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL5(...) CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))

#ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
// MSVC needs more evaluations
#define CATCH_RECURSION_LEVEL6(...) CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
#else
#define CATCH_RECURSE(...)  CATCH_RECURSION_LEVEL5(__VA_ARGS__)
#endif

#define CATCH_REC_END(...)
#define CATCH_REC_OUT

#define CATCH_EMPTY()
#define CATCH_DEFER(id) id CATCH_EMPTY()

#define CATCH_REC_GET_END2() 0, CATCH_REC_END
#define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
#define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
#define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
#define CATCH_REC_NEXT1(test, next) CATCH_DEFER ( CATCH_REC_NEXT0 ) ( test, next, 0)
#define CATCH_REC_NEXT(test, next)  CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)

#define CATCH_REC_LIST0(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )
#define CATCH_REC_LIST1(f, x, peek, ...) , f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0) ) ( f, peek, __VA_ARGS__ )
#define CATCH_REC_LIST2(f, x, peek, ...)   f(x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1) ) ( f, peek, __VA_ARGS__ )

#define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )
#define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...) , f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD) ) ( f, userdata, peek, __VA_ARGS__ )
#define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)   f(userdata, x) CATCH_DEFER ( CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD) ) ( f, userdata, peek, __VA_ARGS__ )

// Applies the function macro `f` to each of the remaining parameters, inserts commas between the results,
// and passes userdata as the first parameter to each invocation,
// e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a), f(x, b), f(x, c)
#define CATCH_REC_LIST_UD(f, userdata, ...) CATCH_RECURSE(CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define CATCH_REC_LIST(f, ...) CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
#define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO## __VA_ARGS__
#define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF

#define INTERNAL_CATCH_REMOVE_PARENS(...) INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF __VA_ARGS__)

#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(Name, ...) INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name, __VA_ARGS__)
#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name,...) Name " - " #__VA_ARGS__
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME(Name,...) INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(Name, INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
#else
// MSVC is adding extra space and needs more calls to properly remove ()
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name,...) Name " -" #__VA_ARGS__
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME1(Name, ...) INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(Name, __VA_ARGS__)
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME(Name, ...) INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME1(Name, INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
#endif

// end catch_preprocessor.hpp
namespace Catch {

	template<typename C>
	class TestInvokerAsMethod : public ITestInvoker {
		void (C::*m_testAsMethod)();
	public:
		TestInvokerAsMethod( void (C::*testAsMethod)() ) noexcept : m_testAsMethod( testAsMethod ) {}

		void invoke() const override {
			C obj;
			(obj.*m_testAsMethod)();
		}
	};

	auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker*;

	template<typename C>
	auto makeTestInvoker( void (C::*testAsMethod)() ) noexcept -> ITestInvoker* {
		return new(std::nothrow) TestInvokerAsMethod<C>( testAsMethod );
	}

	struct NameAndTags {
		NameAndTags( StringRef const& name_ = StringRef(), StringRef const& tags_ = StringRef() ) noexcept;
		StringRef name;
		StringRef tags;
	};

	struct AutoReg : NonCopyable {
		AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept;
		~AutoReg();
	};

} // end namespace Catch

#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( TestName, ... ) \
        static void TestName()
#define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... ) \
        namespace{                        \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                void test();              \
            };                            \
        }                                 \
        void TestName::test()
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION( TestName, ... )  \
        template<typename TestType>                                             \
        static void TestName()
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( TestName, ClassName, ... )    \
        namespace{                                                                                  \
            template<typename TestType>                                                             \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) {     \
                void test();                                                                        \
            };                                                                                      \
        }                                                                                           \
        template<typename TestType>                                                                 \
        void TestName::test()
#endif

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TESTCASE2( TestName, ... ) \
        static void TestName(); \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &TestName ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
        static void TestName()
#define INTERNAL_CATCH_TESTCASE( ... ) \
        INTERNAL_CATCH_TESTCASE2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), __VA_ARGS__ )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_METHOD_AS_TEST_CASE( QualifiedMethod, ... ) \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( &QualifiedMethod ), CATCH_INTERNAL_LINEINFO, "&" #QualifiedMethod, Catch::NameAndTags{ __VA_ARGS__ } ); } /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST_CASE_METHOD2( TestName, ClassName, ... )\
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) { \
                void test(); \
            }; \
            Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar ) ( Catch::makeTestInvoker( &TestName::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
        } \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
        void TestName::test()
#define INTERNAL_CATCH_TEST_CASE_METHOD( ClassName, ... ) \
        INTERNAL_CATCH_TEST_CASE_METHOD2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), ClassName, __VA_ARGS__ )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_REGISTER_TESTCASE( Function, ... ) \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME( autoRegistrar )( Catch::makeTestInvoker( Function ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ __VA_ARGS__ } ); /* NOLINT */ \
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags, ... )\
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        template<typename TestType> \
        static void TestFunc();\
        namespace {\
            template<typename...Types> \
            struct TestName{\
                template<typename...Ts> \
                TestName(Ts...names){\
                    CATCH_INTERNAL_CHECK_UNIQUE_TYPES(CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__)) \
                    using expander = int[];\
                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestFunc<Types> ), CATCH_INTERNAL_LINEINFO, Catch::StringRef(), Catch::NameAndTags{ names, Tags } ), 0)... };/* NOLINT */ \
                }\
            };\
            INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestName, Name, __VA_ARGS__) \
        }\
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
        template<typename TestType> \
        static void TestFunc()

#if defined(CATCH_CPP17_OR_GREATER)
#define CATCH_INTERNAL_CHECK_UNIQUE_TYPES(...) static_assert(Catch::is_unique<__VA_ARGS__>,"Duplicate type detected in declaration of template test case");
#else
#define CATCH_INTERNAL_CHECK_UNIQUE_TYPES(...) static_assert(Catch::is_unique<__VA_ARGS__>::value,"Duplicate type detected in declaration of template test case");
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, __VA_ARGS__ )
#else
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____ ), Name, Tags, __VA_ARGS__ ) )
#endif

#define INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestName, Name, ...)\
        static int INTERNAL_CATCH_UNIQUE_NAME( globalRegistrar ) = [](){\
            TestName<CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__)>(CATCH_REC_LIST_UD(INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME,Name, __VA_ARGS__));\
            return 0;\
        }();

#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( TestNameClass, TestName, ClassName, Name, Tags, ... ) \
        CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
        namespace{ \
            template<typename TestType> \
            struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName <TestType>) { \
                void test();\
            };\
            template<typename...Types> \
            struct TestNameClass{\
                template<typename...Ts> \
                TestNameClass(Ts...names){\
                    CATCH_INTERNAL_CHECK_UNIQUE_TYPES(CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__)) \
                    using expander = int[];\
                    (void)expander{(Catch::AutoReg( Catch::makeTestInvoker( &TestName<Types>::test ), CATCH_INTERNAL_LINEINFO, #ClassName, Catch::NameAndTags{ names, Tags } ), 0)... };/* NOLINT */ \
                }\
            };\
            INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestNameClass, Name, __VA_ARGS__)\
        }\
        CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS\
        template<typename TestType> \
        void TestName<TestType>::test()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
        INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, __VA_ARGS__ )
#else
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( ClassName, Name, Tags,... ) \
        INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2( INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____ ), INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) , ClassName, Name, Tags, __VA_ARGS__ ) )
#endif

  // end catch_test_registry.h
  // start catch_capture.hpp

  // start catch_assertionhandler.h

  // start catch_assertioninfo.h

  // start catch_result_type.h

namespace Catch {

	// ResultWas::OfType enum
	struct ResultWas { enum OfType {
		Unknown = -1,
		Ok = 0,
		Info = 1,
		Warning = 2,

		FailureBit = 0x10,

		ExpressionFailed = FailureBit | 1,
		ExplicitFailure = FailureBit | 2,

		Exception = 0x100 | FailureBit,

		ThrewException = Exception | 1,
		DidntThrowException = Exception | 2,

		FatalErrorCondition = 0x200 | FailureBit

	}; };

	bool isOk( ResultWas::OfType resultType );
	bool isJustInfo( int flags );

	// ResultDisposition::Flags enum
	struct ResultDisposition { enum Flags {
		Normal = 0x01,

		ContinueOnFailure = 0x02,   // Failures fail test, but execution continues
		FalseTest = 0x04,           // Prefix expression with !
		SuppressFail = 0x08         // Failures are reported but do not fail the test
	}; };

	ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs );

	bool shouldContinueOnFailure( int flags );
	inline bool isFalseTest( int flags ) { return ( flags & ResultDisposition::FalseTest ) != 0; }
	bool shouldSuppressFailure( int flags );

} // end namespace Catch

  // end catch_result_type.h
namespace Catch {

	struct AssertionInfo
	{
		StringRef macroName;
		SourceLineInfo lineInfo;
		StringRef capturedExpression;
		ResultDisposition::Flags resultDisposition;

		// We want to delete this constructor but a compiler bug in 4.8 means
		// the struct is then treated as non-aggregate
		//AssertionInfo() = delete;
	};

} // end namespace Catch

  // end catch_assertioninfo.h
  // start catch_decomposer.h

  // start catch_tostring.h

#include <vector>
#include <cstddef>
#include <type_traits>
#include <string>
  // start catch_stream.h

#include <iosfwd>
#include <cstddef>
#include <ostream>

namespace Catch {

	std::ostream& cout();
	std::ostream& cerr();
	std::ostream& clog();

	class StringRef;

	struct IStream {
		virtual ~IStream();
		virtual std::ostream& stream() const = 0;
	};

	auto makeStream( StringRef const &filename ) -> IStream const*;

	class ReusableStringStream {
		std::size_t m_index;
		std::ostream* m_oss;
	public:
		ReusableStringStream();
		~ReusableStringStream();

		auto str() const -> std::string;

		template<typename T>
		auto operator << ( T const& value ) -> ReusableStringStream& {
			*m_oss << value;
			return *this;
		}
		auto get() -> std::ostream& { return *m_oss; }
	};
}

// end catch_stream.h

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
#include <string_view>
#endif

#ifdef __OBJC__
// start catch_objc_arc.hpp

#import <Foundation/Foundation.h>

#ifdef __has_feature
#define CATCH_ARC_ENABLED __has_feature(objc_arc)
#else
#define CATCH_ARC_ENABLED 0
#endif

void arcSafeRelease( NSObject* obj );
id performOptionalSelector( id obj, SEL sel );

#if !CATCH_ARC_ENABLED
inline void arcSafeRelease( NSObject* obj ) {
	[obj release];
}
inline id performOptionalSelector( id obj, SEL sel ) {
	if( [obj respondsToSelector: sel] )
		return [obj performSelector: sel];
	return nil;
}
#define CATCH_UNSAFE_UNRETAINED
#define CATCH_ARC_STRONG
#else
inline void arcSafeRelease( NSObject* ){}
inline id performOptionalSelector( id obj, SEL sel ) {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
#endif
	if( [obj respondsToSelector: sel] )
		return [obj performSelector: sel];
#ifdef __clang__
#pragma clang diagnostic pop
#endif
	return nil;
}
#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
#define CATCH_ARC_STRONG __strong
#endif

// end catch_objc_arc.hpp
#endif

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4180) // We attempt to stream a function (address) by const&, which MSVC complains about but is harmless
#endif

namespace Catch {
	namespace Detail {

		extern const std::string unprintableString;

		std::string rawMemoryToString( const void *object, std::size_t size );

		template<typename T>
		std::string rawMemoryToString( const T& object ) {
			return rawMemoryToString( &object, sizeof(object) );
		}

		template<typename T>
		class IsStreamInsertable {
			template<typename SS, typename TT>
			static auto test(int)
				-> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());

			template<typename, typename>
			static auto test(...)->std::false_type;

		public:
			static const bool value = decltype(test<std::ostream, const T&>(0))::value;
		};

		template<typename E>
		std::string convertUnknownEnumToString( E e );

		template<typename T>
		typename std::enable_if<
			!std::is_enum<T>::value && !std::is_base_of<std::exception, T>::value,
			std::string>::type convertUnstreamable( T const& ) {
			return Detail::unprintableString;
		}
		template<typename T>
		typename std::enable_if<
			!std::is_enum<T>::value && std::is_base_of<std::exception, T>::value,
			std::string>::type convertUnstreamable(T const& ex) {
			return ex.what();
		}

		template<typename T>
		typename std::enable_if<
			std::is_enum<T>::value
			, std::string>::type convertUnstreamable( T const& value ) {
			return convertUnknownEnumToString( value );
		}

#if defined(_MANAGED)
		//! Convert a CLR string to a utf8 std::string
		template<typename T>
		std::string clrReferenceToString( T^ ref ) {
			if (ref == nullptr)
				return std::string("null");
			auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
			cli::pin_ptr<System::Byte> p = &bytes[0];
			return std::string(reinterpret_cast<char const *>(p), bytes->Length);
		}
#endif

	} // namespace Detail

	  // If we decide for C++14, change these to enable_if_ts
	template <typename T, typename = void>
	struct StringMaker {
		template <typename Fake = T>
		static
			typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
			convert(const Fake& value) {
			ReusableStringStream rss;
			// NB: call using the function-like syntax to avoid ambiguity with
			// user-defined templated operator<< under clang.
			rss.operator<<(value);
			return rss.str();
		}

		template <typename Fake = T>
		static
			typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value, std::string>::type
			convert( const Fake& value ) {
#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
			return Detail::convertUnstreamable(value);
#else
			return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
#endif
		}
	};

	namespace Detail {

		// This function dispatches all stringification requests inside of Catch.
		// Should be preferably called fully qualified, like ::Catch::Detail::stringify
		template <typename T>
		std::string stringify(const T& e) {
			return ::Catch::StringMaker<typename std::remove_cv<typename std::remove_reference<T>::type>::type>::convert(e);
		}

		template<typename E>
		std::string convertUnknownEnumToString( E e ) {
			return ::Catch::Detail::stringify(static_cast<typename std::underlying_type<E>::type>(e));
		}

#if defined(_MANAGED)
		template <typename T>
		std::string stringify( T^ e ) {
			return ::Catch::StringMaker<T^>::convert(e);
		}
#endif

	} // namespace Detail

	  // Some predefined specializations

	template<>
	struct StringMaker<std::string> {
		static std::string convert(const std::string& str);
	};

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
	template<>
	struct StringMaker<std::string_view> {
		static std::string convert(std::string_view str);
	};
#endif

	template<>
	struct StringMaker<char const *> {
		static std::string convert(char const * str);
	};
	template<>
	struct StringMaker<char *> {
		static std::string convert(char * str);
	};

#ifdef CATCH_CONFIG_WCHAR
	template<>
	struct StringMaker<std::wstring> {
		static std::string convert(const std::wstring& wstr);
	};

# ifdef CATCH_CONFIG_CPP17_STRING_VIEW
	template<>
	struct StringMaker<std::wstring_view> {
		static std::string convert(std::wstring_view str);
	};
# endif

	template<>
	struct StringMaker<wchar_t const *> {
		static std::string convert(wchar_t const * str);
	};
	template<>
	struct StringMaker<wchar_t *> {
		static std::string convert(wchar_t * str);
	};
#endif

	// TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
	//      while keeping string semantics?
	template<int SZ>
	struct StringMaker<char[SZ]> {
		static std::string convert(char const* str) {
			return ::Catch::Detail::stringify(std::string{ str });
		}
	};
	template<int SZ>
	struct StringMaker<signed char[SZ]> {
		static std::string convert(signed char const* str) {
			return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
		}
	};
	template<int SZ>
	struct StringMaker<unsigned char[SZ]> {
		static std::string convert(unsigned char const* str) {
			return ::Catch::Detail::stringify(std::string{ reinterpret_cast<char const *>(str) });
		}
	};

	template<>
	struct StringMaker<int> {
		static std::string convert(int value);
	};
	template<>
	struct StringMaker<long> {
		static std::string convert(long value);
	};
	template<>
	struct StringMaker<long long> {
		static std::string convert(long long value);
	};
	template<>
	struct StringMaker<unsigned int> {
		static std::string convert(unsigned int value);
	};
	template<>
	struct StringMaker<unsigned long> {
		static std::string convert(unsigned long value);
	};
	template<>
	struct StringMaker<unsigned long long> {
		static std::string convert(unsigned long long value);
	};

	template<>
	struct StringMaker<bool> {
		static std::string convert(bool b);
	};

	template<>
	struct StringMaker<char> {
		static std::string convert(char c);
	};
	template<>
	struct StringMaker<signed char> {
		static std::string convert(signed char c);
	};
	template<>
	struct StringMaker<unsigned char> {
		static std::string convert(unsigned char c);
	};

	template<>
	struct StringMaker<std::nullptr_t> {
		static std::string convert(std::nullptr_t);
	};

	template<>
	struct StringMaker<float> {
		static std::string convert(float value);
	};
	template<>
	struct StringMaker<double> {
		static std::string convert(double value);
	};

	template <typename T>
	struct StringMaker<T*> {
		template <typename U>
		static std::string convert(U* p) {
			if (p) {
				return ::Catch::Detail::rawMemoryToString(p);
			} else {
				return "nullptr";
			}
		}
	};

	template <typename R, typename C>
	struct StringMaker<R C::*> {
		static std::string convert(R C::* p) {
			if (p) {
				return ::Catch::Detail::rawMemoryToString(p);
			} else {
				return "nullptr";
			}
		}
	};

#if defined(_MANAGED)
	template <typename T>
	struct StringMaker<T^> {
		static std::string convert( T^ ref ) {
			return ::Catch::Detail::clrReferenceToString(ref);
		}
	};
#endif

	namespace Detail {
		template<typename InputIterator>
		std::string rangeToString(InputIterator first, InputIterator last) {
			ReusableStringStream rss;
			rss << "{ ";
			if (first != last) {
				rss << ::Catch::Detail::stringify(*first);
				for (++first; first != last; ++first)
					rss << ", " << ::Catch::Detail::stringify(*first);
			}
			rss << " }";
			return rss.str();
		}
	}

#ifdef __OBJC__
	template<>
	struct StringMaker<NSString*> {
		static std::string convert(NSString * nsstring) {
			if (!nsstring)
				return "nil";
			return std::string("@") + [nsstring UTF8String];
		}
	};
	template<>
	struct StringMaker<NSObject*> {
		static std::string convert(NSObject* nsObject) {
			return ::Catch::Detail::stringify([nsObject description]);
		}

	};
	namespace Detail {
		inline std::string stringify( NSString* nsstring ) {
			return StringMaker<NSString*>::convert( nsstring );
		}

	} // namespace Detail
#endif // __OBJC__

} // namespace Catch

  //////////////////////////////////////////////////////
  // Separate std-lib types stringification, so it can be selectively enabled
  // This means that we do not bring in

#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
#  define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
#  define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

  // Separate std::pair specialization
#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
#include <utility>
namespace Catch {
	template<typename T1, typename T2>
	struct StringMaker<std::pair<T1, T2> > {
		static std::string convert(const std::pair<T1, T2>& pair) {
			ReusableStringStream rss;
			rss << "{ "
				<< ::Catch::Detail::stringify(pair.first)
				<< ", "
				<< ::Catch::Detail::stringify(pair.second)
				<< " }";
			return rss.str();
		}
	};
}
#endif // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER

// Separate std::tuple specialization
#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
#include <tuple>
namespace Catch {
	namespace Detail {
		template<
			typename Tuple,
			std::size_t N = 0,
			bool = (N < std::tuple_size<Tuple>::value)
			>
			struct TupleElementPrinter {
			static void print(const Tuple& tuple, std::ostream& os) {
				os << (N ? ", " : " ")
					<< ::Catch::Detail::stringify(std::get<N>(tuple));
				TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
			}
		};

		template<
			typename Tuple,
			std::size_t N
		>
			struct TupleElementPrinter<Tuple, N, false> {
			static void print(const Tuple&, std::ostream&) {}
		};

	}

	template<typename ...Types>
	struct StringMaker<std::tuple<Types...>> {
		static std::string convert(const std::tuple<Types...>& tuple) {
			ReusableStringStream rss;
			rss << '{';
			Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
			rss << " }";
			return rss.str();
		}
	};
}
#endif // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER

#if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && defined(CATCH_CONFIG_CPP17_VARIANT)
#include <variant>
namespace Catch {
	template<>
	struct StringMaker<std::monostate> {
		static std::string convert(const std::monostate&) {
			return "{ }";
		}
	};

	template<typename... Elements>
	struct StringMaker<std::variant<Elements...>> {
		static std::string convert(const std::variant<Elements...>& variant) {
			if (variant.valueless_by_exception()) {
				return "{valueless variant}";
			} else {
				return std::visit(
					[](const auto& value) {
					return ::Catch::Detail::stringify(value);
				},
					variant
					);
			}
		}
	};
}
#endif // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER

namespace Catch {
	struct not_this_one {}; // Tag type for detecting which begin/ end are being selected

							// Import begin/ end from std here so they are considered alongside the fallback (...) overloads in this namespace
	using std::begin;
	using std::end;

	not_this_one begin( ... );
	not_this_one end( ... );

	template <typename T>
	struct is_range {
		static const bool value =
			!std::is_same<decltype(begin(std::declval<T>())), not_this_one>::value &&
			!std::is_same<decltype(end(std::declval<T>())), not_this_one>::value;
	};

#if defined(_MANAGED) // Managed types are never ranges
	template <typename T>
	struct is_range<T^> {
		static const bool value = false;
	};
#endif

	template<typename Range>
	std::string rangeToString( Range const& range ) {
		return ::Catch::Detail::rangeToString( begin( range ), end( range ) );
	}

	// Handle vector<bool> specially
	template<typename Allocator>
	std::string rangeToString( std::vector<bool, Allocator> const& v ) {
		ReusableStringStream rss;
		rss << "{ ";
		bool first = true;
		for( bool b : v ) {
			if( first )
				first = false;
			else
				rss << ", ";
			rss << ::Catch::Detail::stringify( b );
		}
		rss << " }";
		return rss.str();
	}

	template<typename R>
	struct StringMaker<R, typename std::enable_if<is_range<R>::value && !::Catch::Detail::IsStreamInsertable<R>::value>::type> {
		static std::string convert( R const& range ) {
			return rangeToString( range );
		}
	};

	template <typename T, int SZ>
	struct StringMaker<T[SZ]> {
		static std::string convert(T const(&arr)[SZ]) {
			return rangeToString(arr);
		}
	};

} // namespace Catch

  // Separate std::chrono::duration specialization
#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#include <ctime>
#include <ratio>
#include <chrono>

namespace Catch {

	template <class Ratio>
	struct ratio_string {
		static std::string symbol();
	};

	template <class Ratio>
	std::string ratio_string<Ratio>::symbol() {
		Catch::ReusableStringStream rss;
		rss << '[' << Ratio::num << '/'
			<< Ratio::den << ']';
		return rss.str();
	}
	template <>
	struct ratio_string<std::atto> {
		static std::string symbol();
	};
	template <>
	struct ratio_string<std::femto> {
		static std::string symbol();
	};
	template <>
	struct ratio_string<std::pico> {
		static std::string symbol();
	};
	template <>
	struct ratio_string<std::nano> {
		static std::string symbol();
	};
	template <>
	struct ratio_string<std::micro> {
		static std::string symbol();
	};
	template <>
	struct ratio_string<std::milli> {
		static std::string symbol();
	};

	////////////
	// std::chrono::duration specializations
	template<typename Value, typename Ratio>
	struct StringMaker<std::chrono::duration<Value, Ratio>> {
		static std::string convert(std::chrono::duration<Value, Ratio> const& duration) {
			ReusableStringStream rss;
			rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
			return rss.str();
		}
	};
	template<typename Value>
	struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
		static std::string convert(std::chrono::duration<Value, std::ratio<1>> const& duration) {
			ReusableStringStream rss;
			rss << duration.count() << " s";
			return rss.str();
		}
	};
	template<typename Value>
	struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
		static std::string convert(std::chrono::duration<Value, std::ratio<60>> const& duration) {
			ReusableStringStream rss;
			rss << duration.count() << " m";
			return rss.str();
		}
	};
	template<typename Value>
	struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
		static std::string convert(std::chrono::duration<Value, std::ratio<3600>> const& duration) {
			ReusableStringStream rss;
			rss << duration.count() << " h";
			return rss.str();
		}
	};

	////////////
	// std::chrono::time_point specialization
	// Generic time_point cannot be specialized, only std::chrono::time_point<system_clock>
	template<typename Clock, typename Duration>
	struct StringMaker<std::chrono::time_point<Clock, Duration>> {
		static std::string convert(std::chrono::time_point<Clock, Duration> const& time_point) {
			return ::Catch::Detail::stringify(time_point.time_since_epoch()) + " since epoch";
		}
	};
	// std::chrono::time_point<system_clock> specialization
	template<typename Duration>
	struct StringMaker<std::chrono::time_point<std::chrono::system_clock, Duration>> {
		static std::string convert(std::chrono::time_point<std::chrono::system_clock, Duration> const& time_point) {
			auto converted = std::chrono::system_clock::to_time_t(time_point);

#ifdef _MSC_VER
			std::tm timeInfo = {};
			gmtime_s(&timeInfo, &converted);
#else
			std::tm* timeInfo = std::gmtime(&converted);
#endif

			auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
			char timeStamp[timeStampSize];
			const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
			std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
			std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
			return std::string(timeStamp);
		}
	};
}
#endif // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_tostring.h
#include <iosfwd>

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4389) // '==' : signed/unsigned mismatch
#pragma warning(disable:4018) // more "signed/unsigned mismatch"
#pragma warning(disable:4312) // Converting int to T* using reinterpret_cast (issue on x64 platform)
#pragma warning(disable:4180) // qualifier applied to function type has no meaning
#endif

namespace Catch {

	struct ITransientExpression {
		auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
		auto getResult() const -> bool { return m_result; }
		virtual void streamReconstructedExpression( std::ostream &os ) const = 0;

		ITransientExpression( bool isBinaryExpression, bool result )
			:   m_isBinaryExpression( isBinaryExpression ),
			m_result( result )
		{}

		// We don't actually need a virtual destructor, but many static analysers
		// complain if it's not here :-(
		virtual ~ITransientExpression();

		bool m_isBinaryExpression;
		bool m_result;

	};

	void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs );

	template<typename LhsT, typename RhsT>
	class BinaryExpr  : public ITransientExpression {
		LhsT m_lhs;
		StringRef m_op;
		RhsT m_rhs;

		void streamReconstructedExpression( std::ostream &os ) const override {
			formatReconstructedExpression
			( os, Catch::Detail::stringify( m_lhs ), m_op, Catch::Detail::stringify( m_rhs ) );
		}

	public:
		BinaryExpr( bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs )
			:   ITransientExpression{ true, comparisonResult },
			m_lhs( lhs ),
			m_op( op ),
			m_rhs( rhs )
		{}
	};

	template<typename LhsT>
	class UnaryExpr : public ITransientExpression {
		LhsT m_lhs;

		void streamReconstructedExpression( std::ostream &os ) const override {
			os << Catch::Detail::stringify( m_lhs );
		}

	public:
		explicit UnaryExpr( LhsT lhs )
			:   ITransientExpression{ false, lhs ? true : false },
			m_lhs( lhs )
		{}
	};

	// Specialised comparison functions to handle equality comparisons between ints and pointers (NULL deduces as an int)
	template<typename LhsT, typename RhsT>
	auto compareEqual( LhsT const& lhs, RhsT const& rhs ) -> bool { return static_cast<bool>(lhs == rhs); }
	template<typename T>
	auto compareEqual( T* const& lhs, int rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
	template<typename T>
	auto compareEqual( T* const& lhs, long rhs ) -> bool { return lhs == reinterpret_cast<void const*>( rhs ); }
	template<typename T>
	auto compareEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }
	template<typename T>
	auto compareEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) == rhs; }

	template<typename LhsT, typename RhsT>
	auto compareNotEqual( LhsT const& lhs, RhsT&& rhs ) -> bool { return static_cast<bool>(lhs != rhs); }
	template<typename T>
	auto compareNotEqual( T* const& lhs, int rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
	template<typename T>
	auto compareNotEqual( T* const& lhs, long rhs ) -> bool { return lhs != reinterpret_cast<void const*>( rhs ); }
	template<typename T>
	auto compareNotEqual( int lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }
	template<typename T>
	auto compareNotEqual( long lhs, T* const& rhs ) -> bool { return reinterpret_cast<void const*>( lhs ) != rhs; }

	template<typename LhsT>
	class ExprLhs {
		LhsT m_lhs;
	public:
		explicit ExprLhs( LhsT lhs ) : m_lhs( lhs ) {}

		template<typename RhsT>
		auto operator == ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { compareEqual( m_lhs, rhs ), m_lhs, "==", rhs };
		}
		auto operator == ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
			return { m_lhs == rhs, m_lhs, "==", rhs };
		}

		template<typename RhsT>
		auto operator != ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { compareNotEqual( m_lhs, rhs ), m_lhs, "!=", rhs };
		}
		auto operator != ( bool rhs ) -> BinaryExpr<LhsT, bool> const {
			return { m_lhs != rhs, m_lhs, "!=", rhs };
		}

		template<typename RhsT>
		auto operator > ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs };
		}
		template<typename RhsT>
		auto operator < ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs };
		}
		template<typename RhsT>
		auto operator >= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs };
		}
		template<typename RhsT>
		auto operator <= ( RhsT const& rhs ) -> BinaryExpr<LhsT, RhsT const&> const {
			return { static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs };
		}

		auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
			return UnaryExpr<LhsT>{ m_lhs };
		}
	};

	void handleExpression( ITransientExpression const& expr );

	template<typename T>
	void handleExpression( ExprLhs<T> const& expr ) {
		handleExpression( expr.makeUnaryExpr() );
	}

	struct Decomposer {
		template<typename T>
		auto operator <= ( T const& lhs ) -> ExprLhs<T const&> {
			return ExprLhs<T const&>{ lhs };
		}

		auto operator <=( bool value ) -> ExprLhs<bool> {
			return ExprLhs<bool>{ value };
		}
	};

} // end namespace Catch

#ifdef _MSC_VER
#pragma warning(pop)
#endif

  // end catch_decomposer.h
  // start catch_interfaces_capture.h

#include <string>

namespace Catch {

	class AssertionResult;
	struct AssertionInfo;
	struct SectionInfo;
	struct SectionEndInfo;
	struct MessageInfo;
	struct Counts;
	struct BenchmarkInfo;
	struct BenchmarkStats;
	struct AssertionReaction;
	struct SourceLineInfo;

	struct ITransientExpression;
	struct IGeneratorTracker;

	struct IResultCapture {

		virtual ~IResultCapture();

		virtual bool sectionStarted(    SectionInfo const& sectionInfo,
			Counts& assertions ) = 0;
		virtual void sectionEnded( SectionEndInfo const& endInfo ) = 0;
		virtual void sectionEndedEarly( SectionEndInfo const& endInfo ) = 0;

		virtual auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& = 0;

		virtual void benchmarkStarting( BenchmarkInfo const& info ) = 0;
		virtual void benchmarkEnded( BenchmarkStats const& stats ) = 0;

		virtual void pushScopedMessage( MessageInfo const& message ) = 0;
		virtual void popScopedMessage( MessageInfo const& message ) = 0;

		virtual void handleFatalErrorCondition( StringRef message ) = 0;

		virtual void handleExpr
		(   AssertionInfo const& info,
			ITransientExpression const& expr,
			AssertionReaction& reaction ) = 0;
		virtual void handleMessage
		(   AssertionInfo const& info,
			ResultWas::OfType resultType,
			StringRef const& message,
			AssertionReaction& reaction ) = 0;
		virtual void handleUnexpectedExceptionNotThrown
		(   AssertionInfo const& info,
			AssertionReaction& reaction ) = 0;
		virtual void handleUnexpectedInflightException
		(   AssertionInfo const& info,
			std::string const& message,
			AssertionReaction& reaction ) = 0;
		virtual void handleIncomplete
		(   AssertionInfo const& info ) = 0;
		virtual void handleNonExpr
		(   AssertionInfo const &info,
			ResultWas::OfType resultType,
			AssertionReaction &reaction ) = 0;

		virtual bool lastAssertionPassed() = 0;
		virtual void assertionPassed() = 0;

		// Deprecated, do not use:
		virtual std::string getCurrentTestName() const = 0;
		virtual const AssertionResult* getLastResult() const = 0;
		virtual void exceptionEarlyReported() = 0;
	};

	IResultCapture& getResultCapture();
}

// end catch_interfaces_capture.h
namespace Catch {

	struct TestFailureException{};
	struct AssertionResultData;
	struct IResultCapture;
	class RunContext;

	class LazyExpression {
		friend class AssertionHandler;
		friend struct AssertionStats;
		friend class RunContext;

		ITransientExpression const* m_transientExpression = nullptr;
		bool m_isNegated;
	public:
		LazyExpression( bool isNegated );
		LazyExpression( LazyExpression const& other );
		LazyExpression& operator = ( LazyExpression const& ) = delete;

		explicit operator bool() const;

		friend auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream&;
	};

	struct AssertionReaction {
		bool shouldDebugBreak = false;
		bool shouldThrow = false;
	};

	class AssertionHandler {
		AssertionInfo m_assertionInfo;
		AssertionReaction m_reaction;
		bool m_completed = false;
		IResultCapture& m_resultCapture;

	public:
		AssertionHandler
		(   StringRef const& macroName,
			SourceLineInfo const& lineInfo,
			StringRef capturedExpression,
			ResultDisposition::Flags resultDisposition );
		~AssertionHandler() {
			if ( !m_completed ) {
				m_resultCapture.handleIncomplete( m_assertionInfo );
			}
		}

		template<typename T>
		void handleExpr( ExprLhs<T> const& expr ) {
			handleExpr( expr.makeUnaryExpr() );
		}
		void handleExpr( ITransientExpression const& expr );

		void handleMessage(ResultWas::OfType resultType, StringRef const& message);

		void handleExceptionThrownAsExpected();
		void handleUnexpectedExceptionNotThrown();
		void handleExceptionNotThrownAsExpected();
		void handleThrowingCallSkipped();
		void handleUnexpectedInflightException();

		void complete();
		void setCompleted();

		// query
		auto allowThrows() const -> bool;
	};

	void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString );

} // namespace Catch

  // end catch_assertionhandler.h
  // start catch_message.h

#include <string>
#include <vector>

namespace Catch {

	struct MessageInfo {
		MessageInfo(    StringRef const& _macroName,
			SourceLineInfo const& _lineInfo,
			ResultWas::OfType _type );

		StringRef macroName;
		std::string message;
		SourceLineInfo lineInfo;
		ResultWas::OfType type;
		unsigned int sequence;

		bool operator == ( MessageInfo const& other ) const;
		bool operator < ( MessageInfo const& other ) const;
	private:
		static unsigned int globalCount;
	};

	struct MessageStream {

		template<typename T>
		MessageStream& operator << ( T const& value ) {
			m_stream << value;
			return *this;
		}

		ReusableStringStream m_stream;
	};

	struct MessageBuilder : MessageStream {
		MessageBuilder( StringRef const& macroName,
			SourceLineInfo const& lineInfo,
			ResultWas::OfType type );

		template<typename T>
		MessageBuilder& operator << ( T const& value ) {
			m_stream << value;
			return *this;
		}

		MessageInfo m_info;
	};

	class ScopedMessage {
	public:
		explicit ScopedMessage( MessageBuilder const& builder );
		~ScopedMessage();

		MessageInfo m_info;
	};

	class Capturer {
		std::vector<MessageInfo> m_messages;
		IResultCapture& m_resultCapture = getResultCapture();
		size_t m_captured = 0;
	public:
		Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names );
		~Capturer();

		void captureValue( size_t index, std::string const& value );

		template<typename T>
		void captureValues( size_t index, T const& value ) {
			captureValue( index, Catch::Detail::stringify( value ) );
		}

		template<typename T, typename... Ts>
		void captureValues( size_t index, T const& value, Ts const&... values ) {
			captureValue( index, Catch::Detail::stringify(value) );
			captureValues( index+1, values... );
		}
	};

} // end namespace Catch

  // end catch_message.h
#if !defined(CATCH_CONFIG_DISABLE)

#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
#define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
#else
#define CATCH_INTERNAL_STRINGIFY(...) "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
#endif

#if defined(CATCH_CONFIG_FAST_COMPILE) || defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)

  ///////////////////////////////////////////////////////////////////////////////
  // Another way to speed-up compilation is to omit local try-catch for REQUIRE*
  // macros.
#define INTERNAL_CATCH_TRY
#define INTERNAL_CATCH_CATCH( capturer )

#else // CATCH_CONFIG_FAST_COMPILE

#define INTERNAL_CATCH_TRY try
#define INTERNAL_CATCH_CATCH( handler ) catch(...) { handler.handleUnexpectedInflightException(); }

#endif

#define INTERNAL_CATCH_REACT( handler ) handler.complete();

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        INTERNAL_CATCH_TRY { \
            CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
            catchAssertionHandler.handleExpr( Catch::Decomposer() <= __VA_ARGS__ ); \
            CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( (void)0, false && static_cast<bool>( !!(__VA_ARGS__) ) ) // the expression here is never evaluated at runtime but it forces the compiler to give it a look
  // The double negation silences MSVC's C4800 warning, the static_cast forces short-circuit evaluation if the type has overloaded &&.

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_IF( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( Catch::getResultCapture().lastAssertionPassed() )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_ELSE( macroName, resultDisposition, ... ) \
    INTERNAL_CATCH_TEST( macroName, resultDisposition, __VA_ARGS__ ); \
    if( !Catch::getResultCapture().lastAssertionPassed() )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_NO_THROW( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition ); \
        try { \
            static_cast<void>(__VA_ARGS__); \
            catchAssertionHandler.handleExceptionNotThrownAsExpected(); \
        } \
        catch( ... ) { \
            catchAssertionHandler.handleUnexpectedInflightException(); \
        } \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS( macroName, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__); \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleExceptionThrownAsExpected(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_AS( macroName, exceptionType, resultDisposition, expr ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(exceptionType), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(expr); \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( exceptionType const& ) { \
                catchAssertionHandler.handleExceptionThrownAsExpected(); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleUnexpectedInflightException(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_MSG( macroName, messageType, resultDisposition, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), resultDisposition ); \
        catchAssertionHandler.handleMessage( messageType, ( Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop() ).m_stream.str() ); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_CAPTURE( varName, macroName, ... ) \
    auto varName = Catch::Capturer( macroName, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info, #__VA_ARGS__ ); \
    varName.captureValues( 0, __VA_ARGS__ )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_INFO( macroName, log ) \
    Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME( scopedMessage )( Catch::MessageBuilder( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::ResultWas::Info ) << log );

  ///////////////////////////////////////////////////////////////////////////////
  // Although this is matcher-based, it can be used with just a string
#define INTERNAL_CATCH_THROWS_STR_MATCHES( macroName, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__); \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( ... ) { \
                Catch::handleExceptionMatchExpr( catchAssertionHandler, matcher, #matcher##_catch_sr ); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

#endif // CATCH_CONFIG_DISABLE

  // end catch_capture.hpp
  // start catch_section.h

  // start catch_section_info.h

  // start catch_totals.h

#include <cstddef>

namespace Catch {

	struct Counts {
		Counts operator - ( Counts const& other ) const;
		Counts& operator += ( Counts const& other );

		std::size_t total() const;
		bool allPassed() const;
		bool allOk() const;

		std::size_t passed = 0;
		std::size_t failed = 0;
		std::size_t failedButOk = 0;
	};

	struct Totals {

		Totals operator - ( Totals const& other ) const;
		Totals& operator += ( Totals const& other );

		Totals delta( Totals const& prevTotals ) const;

		int error = 0;
		Counts assertions;
		Counts testCases;
	};
}

// end catch_totals.h
#include <string>

namespace Catch {

	struct SectionInfo {
		SectionInfo
		(   SourceLineInfo const& _lineInfo,
			std::string const& _name );

		// Deprecated
		SectionInfo
		(   SourceLineInfo const& _lineInfo,
			std::string const& _name,
			std::string const& ) : SectionInfo( _lineInfo, _name ) {}

		std::string name;
		std::string description; // !Deprecated: this will always be empty
		SourceLineInfo lineInfo;
	};

	struct SectionEndInfo {
		SectionInfo sectionInfo;
		Counts prevAssertions;
		double durationInSeconds;
	};

} // end namespace Catch

  // end catch_section_info.h
  // start catch_timer.h

#include <cstdint>

namespace Catch {

	auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
	auto getEstimatedClockResolution() -> uint64_t;

	class Timer {
		uint64_t m_nanoseconds = 0;
	public:
		void start();
		auto getElapsedNanoseconds() const -> uint64_t;
		auto getElapsedMicroseconds() const -> uint64_t;
		auto getElapsedMilliseconds() const -> unsigned int;
		auto getElapsedSeconds() const -> double;
	};

} // namespace Catch

  // end catch_timer.h
#include <string>

namespace Catch {

	class Section : NonCopyable {
	public:
		Section( SectionInfo const& info );
		~Section();

		// This indicates whether the section should be executed or not
		explicit operator bool() const;

	private:
		SectionInfo m_info;

		std::string m_name;
		Counts m_assertions;
		bool m_sectionIncluded;
		Timer m_timer;
	};

} // end namespace Catch

#define INTERNAL_CATCH_SECTION( ... ) \
    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
    if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, __VA_ARGS__ ) ) \
    CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS

#define INTERNAL_CATCH_DYNAMIC_SECTION( ... ) \
    CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
    if( Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME( catch_internal_Section ) = Catch::SectionInfo( CATCH_INTERNAL_LINEINFO, (Catch::ReusableStringStream() << __VA_ARGS__).str() ) ) \
    CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS

  // end catch_section.h
  // start catch_benchmark.h

#include <cstdint>
#include <string>

namespace Catch {

	class BenchmarkLooper {

		std::string m_name;
		std::size_t m_count = 0;
		std::size_t m_iterationsToRun = 1;
		uint64_t m_resolution;
		Timer m_timer;

		static auto getResolution() -> uint64_t;
	public:
		// Keep most of this inline as it's on the code path that is being timed
		BenchmarkLooper( StringRef name )
			:   m_name( name ),
			m_resolution( getResolution() )
		{
			reportStart();
			m_timer.start();
		}

		explicit operator bool() {
			if( m_count < m_iterationsToRun )
				return true;
			return needsMoreIterations();
		}

		void increment() {
			++m_count;
		}

		void reportStart();
		auto needsMoreIterations() -> bool;
	};

} // end namespace Catch

#define BENCHMARK( name ) \
    for( Catch::BenchmarkLooper looper( name ); looper; looper.increment() )

  // end catch_benchmark.h
  // start catch_interfaces_exception.h

  // start catch_interfaces_registry_hub.h

#include <string>
#include <memory>

namespace Catch {

	class TestCase;
	struct ITestCaseRegistry;
	struct IExceptionTranslatorRegistry;
	struct IExceptionTranslator;
	struct IReporterRegistry;
	struct IReporterFactory;
	struct ITagAliasRegistry;
	class StartupExceptionRegistry;

	using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

	struct IRegistryHub {
		virtual ~IRegistryHub();

		virtual IReporterRegistry const& getReporterRegistry() const = 0;
		virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
		virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;

		virtual IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const = 0;

		virtual StartupExceptionRegistry const& getStartupExceptionRegistry() const = 0;
	};

	struct IMutableRegistryHub {
		virtual ~IMutableRegistryHub();
		virtual void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) = 0;
		virtual void registerListener( IReporterFactoryPtr const& factory ) = 0;
		virtual void registerTest( TestCase const& testInfo ) = 0;
		virtual void registerTranslator( const IExceptionTranslator* translator ) = 0;
		virtual void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) = 0;
		virtual void registerStartupException() noexcept = 0;
	};

	IRegistryHub const& getRegistryHub();
	IMutableRegistryHub& getMutableRegistryHub();
	void cleanUp();
	std::string translateActiveException();

}

// end catch_interfaces_registry_hub.h
#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( translatorName, signature) \
        static std::string translatorName( signature )
#endif

#include <exception>
#include <string>
#include <vector>

namespace Catch {
	using exceptionTranslateFunction = std::string(*)();

	struct IExceptionTranslator;
	using ExceptionTranslators = std::vector<std::unique_ptr<IExceptionTranslator const>>;

	struct IExceptionTranslator {
		virtual ~IExceptionTranslator();
		virtual std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const = 0;
	};

	struct IExceptionTranslatorRegistry {
		virtual ~IExceptionTranslatorRegistry();

		virtual std::string translateActiveException() const = 0;
	};

	class ExceptionTranslatorRegistrar {
		template<typename T>
		class ExceptionTranslator : public IExceptionTranslator {
		public:

			ExceptionTranslator( std::string(*translateFunction)( T& ) )
				: m_translateFunction( translateFunction )
			{}

			std::string translate( ExceptionTranslators::const_iterator it, ExceptionTranslators::const_iterator itEnd ) const override {
				try {
					if( it == itEnd )
						std::rethrow_exception(std::current_exception());
					else
						return (*it)->translate( it+1, itEnd );
				}
				catch( T& ex ) {
					return m_translateFunction( ex );
				}
			}

		protected:
			std::string(*m_translateFunction)( T& );
		};

	public:
		template<typename T>
		ExceptionTranslatorRegistrar( std::string(*translateFunction)( T& ) ) {
			getMutableRegistryHub().registerTranslator
			( new ExceptionTranslator<T>( translateFunction ) );
		}
	};
}

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2( translatorName, signature ) \
    static std::string translatorName( signature ); \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS \
    namespace{ Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionRegistrar )( &translatorName ); } \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
    static std::string translatorName( signature )

#define INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION2( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

// end catch_interfaces_exception.h
// start catch_approx.h

#include <type_traits>

namespace Catch {
	namespace Detail {

		class Approx {
		private:
			bool equalityComparisonImpl(double other) const;
			// Validates the new margin (margin >= 0)
			// out-of-line to avoid including stdexcept in the header
			void setMargin(double margin);
			// Validates the new epsilon (0 < epsilon < 1)
			// out-of-line to avoid including stdexcept in the header
			void setEpsilon(double epsilon);

		public:
			explicit Approx ( double value );

			static Approx custom();

			Approx operator-() const;

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			Approx operator()( T const& value ) {
				Approx approx( static_cast<double>(value) );
				approx.m_epsilon = m_epsilon;
				approx.m_margin = m_margin;
				approx.m_scale = m_scale;
				return approx;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			explicit Approx( T const& value ): Approx(static_cast<double>(value))
			{}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator == ( const T& lhs, Approx const& rhs ) {
				auto lhs_v = static_cast<double>(lhs);
				return rhs.equalityComparisonImpl(lhs_v);
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator == ( Approx const& lhs, const T& rhs ) {
				return operator==( rhs, lhs );
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator != ( T const& lhs, Approx const& rhs ) {
				return !operator==( lhs, rhs );
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator != ( Approx const& lhs, T const& rhs ) {
				return !operator==( rhs, lhs );
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator <= ( T const& lhs, Approx const& rhs ) {
				return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator <= ( Approx const& lhs, T const& rhs ) {
				return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator >= ( T const& lhs, Approx const& rhs ) {
				return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			friend bool operator >= ( Approx const& lhs, T const& rhs ) {
				return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			Approx& epsilon( T const& newEpsilon ) {
				double epsilonAsDouble = static_cast<double>(newEpsilon);
				setEpsilon(epsilonAsDouble);
				return *this;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			Approx& margin( T const& newMargin ) {
				double marginAsDouble = static_cast<double>(newMargin);
				setMargin(marginAsDouble);
				return *this;
			}

			template <typename T, typename = typename std::enable_if<std::is_constructible<double, T>::value>::type>
			Approx& scale( T const& newScale ) {
				m_scale = static_cast<double>(newScale);
				return *this;
			}

			std::string toString() const;

		private:
			double m_epsilon;
			double m_margin;
			double m_scale;
			double m_value;
		};
	} // end namespace Detail

	namespace literals {
		Detail::Approx operator "" _a(long double val);
		Detail::Approx operator "" _a(unsigned long long val);
	} // end namespace literals

	template<>
	struct StringMaker<Catch::Detail::Approx> {
		static std::string convert(Catch::Detail::Approx const& value);
	};

} // end namespace Catch

  // end catch_approx.h
  // start catch_string_manip.h

#include <string>
#include <iosfwd>

namespace Catch {

	bool startsWith( std::string const& s, std::string const& prefix );
	bool startsWith( std::string const& s, char prefix );
	bool endsWith( std::string const& s, std::string const& suffix );
	bool endsWith( std::string const& s, char suffix );
	bool contains( std::string const& s, std::string const& infix );
	void toLowerInPlace( std::string& s );
	std::string toLower( std::string const& s );
	std::string trim( std::string const& str );
	bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis );

	struct pluralise {
		pluralise( std::size_t count, std::string const& label );

		friend std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser );

		std::size_t m_count;
		std::string m_label;
	};
}

// end catch_string_manip.h
#ifndef CATCH_CONFIG_DISABLE_MATCHERS
// start catch_capture_matchers.h

// start catch_matchers.h

#include <string>
#include <vector>

namespace Catch {
	namespace Matchers {
		namespace Impl {

			template<typename ArgT> struct MatchAllOf;
			template<typename ArgT> struct MatchAnyOf;
			template<typename ArgT> struct MatchNotOf;

			class MatcherUntypedBase {
			public:
				MatcherUntypedBase() = default;
				MatcherUntypedBase ( MatcherUntypedBase const& ) = default;
				MatcherUntypedBase& operator = ( MatcherUntypedBase const& ) = delete;
				std::string toString() const;

			protected:
				virtual ~MatcherUntypedBase();
				virtual std::string describe() const = 0;
				mutable std::string m_cachedToString;
			};

#ifdef __clang__
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wnon-virtual-dtor"
#endif

			template<typename ObjectT>
			struct MatcherMethod {
				virtual bool match( ObjectT const& arg ) const = 0;
			};

#ifdef __clang__
#    pragma clang diagnostic pop
#endif

			template<typename T>
			struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {

				MatchAllOf<T> operator && ( MatcherBase const& other ) const;
				MatchAnyOf<T> operator || ( MatcherBase const& other ) const;
				MatchNotOf<T> operator ! () const;
			};

			template<typename ArgT>
			struct MatchAllOf : MatcherBase<ArgT> {
				bool match( ArgT const& arg ) const override {
					for( auto matcher : m_matchers ) {
						if (!matcher->match(arg))
							return false;
					}
					return true;
				}
				std::string describe() const override {
					std::string description;
					description.reserve( 4 + m_matchers.size()*32 );
					description += "( ";
					bool first = true;
					for( auto matcher : m_matchers ) {
						if( first )
							first = false;
						else
							description += " and ";
						description += matcher->toString();
					}
					description += " )";
					return description;
				}

				MatchAllOf<ArgT>& operator && ( MatcherBase<ArgT> const& other ) {
					m_matchers.push_back( &other );
					return *this;
				}

				std::vector<MatcherBase<ArgT> const*> m_matchers;
			};
			template<typename ArgT>
			struct MatchAnyOf : MatcherBase<ArgT> {

				bool match( ArgT const& arg ) const override {
					for( auto matcher : m_matchers ) {
						if (matcher->match(arg))
							return true;
					}
					return false;
				}
				std::string describe() const override {
					std::string description;
					description.reserve( 4 + m_matchers.size()*32 );
					description += "( ";
					bool first = true;
					for( auto matcher : m_matchers ) {
						if( first )
							first = false;
						else
							description += " or ";
						description += matcher->toString();
					}
					description += " )";
					return description;
				}

				MatchAnyOf<ArgT>& operator || ( MatcherBase<ArgT> const& other ) {
					m_matchers.push_back( &other );
					return *this;
				}

				std::vector<MatcherBase<ArgT> const*> m_matchers;
			};

			template<typename ArgT>
			struct MatchNotOf : MatcherBase<ArgT> {

				MatchNotOf( MatcherBase<ArgT> const& underlyingMatcher ) : m_underlyingMatcher( underlyingMatcher ) {}

				bool match( ArgT const& arg ) const override {
					return !m_underlyingMatcher.match( arg );
				}

				std::string describe() const override {
					return "not " + m_underlyingMatcher.toString();
				}
				MatcherBase<ArgT> const& m_underlyingMatcher;
			};

			template<typename T>
			MatchAllOf<T> MatcherBase<T>::operator && ( MatcherBase const& other ) const {
				return MatchAllOf<T>() && *this && other;
			}
			template<typename T>
			MatchAnyOf<T> MatcherBase<T>::operator || ( MatcherBase const& other ) const {
				return MatchAnyOf<T>() || *this || other;
			}
			template<typename T>
			MatchNotOf<T> MatcherBase<T>::operator ! () const {
				return MatchNotOf<T>( *this );
			}

		} // namespace Impl

	} // namespace Matchers

	using namespace Matchers;
	using Matchers::Impl::MatcherBase;

} // namespace Catch

  // end catch_matchers.h
  // start catch_matchers_floating.h

#include <type_traits>
#include <cmath>

namespace Catch {
	namespace Matchers {

		namespace Floating {

			enum class FloatingPointKind : uint8_t;

			struct WithinAbsMatcher : MatcherBase<double> {
				WithinAbsMatcher(double target, double margin);
				bool match(double const& matchee) const override;
				std::string describe() const override;
			private:
				double m_target;
				double m_margin;
			};

			struct WithinUlpsMatcher : MatcherBase<double> {
				WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
				bool match(double const& matchee) const override;
				std::string describe() const override;
			private:
				double m_target;
				int m_ulps;
				FloatingPointKind m_type;
			};

		} // namespace Floating

		  // The following functions create the actual matcher objects.
		  // This allows the types to be inferred
		Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff);
		Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff);
		Floating::WithinAbsMatcher WithinAbs(double target, double margin);

	} // namespace Matchers
} // namespace Catch

  // end catch_matchers_floating.h
  // start catch_matchers_generic.hpp

#include <functional>
#include <string>

namespace Catch {
	namespace Matchers {
		namespace Generic {

			namespace Detail {
				std::string finalizeDescription(const std::string& desc);
			}

			template <typename T>
			class PredicateMatcher : public MatcherBase<T> {
				std::function<bool(T const&)> m_predicate;
				std::string m_description;
			public:

				PredicateMatcher(std::function<bool(T const&)> const& elem, std::string const& descr)
					:m_predicate(std::move(elem)),
					m_description(Detail::finalizeDescription(descr))
				{}

				bool match( T const& item ) const override {
					return m_predicate(item);
				}

				std::string describe() const override {
					return m_description;
				}
			};

		} // namespace Generic

		  // The following functions create the actual matcher objects.
		  // The user has to explicitly specify type to the function, because
		  // infering std::function<bool(T const&)> is hard (but possible) and
		  // requires a lot of TMP.
		template<typename T>
		Generic::PredicateMatcher<T> Predicate(std::function<bool(T const&)> const& predicate, std::string const& description = "") {
			return Generic::PredicateMatcher<T>(predicate, description);
		}

	} // namespace Matchers
} // namespace Catch

  // end catch_matchers_generic.hpp
  // start catch_matchers_string.h

#include <string>

namespace Catch {
	namespace Matchers {

		namespace StdString {

			struct CasedString
			{
				CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity );
				std::string adjustString( std::string const& str ) const;
				std::string caseSensitivitySuffix() const;

				CaseSensitive::Choice m_caseSensitivity;
				std::string m_str;
			};

			struct StringMatcherBase : MatcherBase<std::string> {
				StringMatcherBase( std::string const& operation, CasedString const& comparator );
				std::string describe() const override;

				CasedString m_comparator;
				std::string m_operation;
			};

			struct EqualsMatcher : StringMatcherBase {
				EqualsMatcher( CasedString const& comparator );
				bool match( std::string const& source ) const override;
			};
			struct ContainsMatcher : StringMatcherBase {
				ContainsMatcher( CasedString const& comparator );
				bool match( std::string const& source ) const override;
			};
			struct StartsWithMatcher : StringMatcherBase {
				StartsWithMatcher( CasedString const& comparator );
				bool match( std::string const& source ) const override;
			};
			struct EndsWithMatcher : StringMatcherBase {
				EndsWithMatcher( CasedString const& comparator );
				bool match( std::string const& source ) const override;
			};

			struct RegexMatcher : MatcherBase<std::string> {
				RegexMatcher( std::string regex, CaseSensitive::Choice caseSensitivity );
				bool match( std::string const& matchee ) const override;
				std::string describe() const override;

			private:
				std::string m_regex;
				CaseSensitive::Choice m_caseSensitivity;
			};

		} // namespace StdString

		  // The following functions create the actual matcher objects.
		  // This allows the types to be inferred

		StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
		StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
		StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
		StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );
		StdString::RegexMatcher Matches( std::string const& regex, CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes );

	} // namespace Matchers
} // namespace Catch

  // end catch_matchers_string.h
  // start catch_matchers_vector.h

#include <algorithm>

namespace Catch {
	namespace Matchers {

		namespace Vector {
			namespace Detail {
				template <typename InputIterator, typename T>
				size_t count(InputIterator first, InputIterator last, T const& item) {
					size_t cnt = 0;
					for (; first != last; ++first) {
						if (*first == item) {
							++cnt;
						}
					}
					return cnt;
				}
				template <typename InputIterator, typename T>
				bool contains(InputIterator first, InputIterator last, T const& item) {
					for (; first != last; ++first) {
						if (*first == item) {
							return true;
						}
					}
					return false;
				}
			}

			template<typename T>
			struct ContainsElementMatcher : MatcherBase<std::vector<T>> {

				ContainsElementMatcher(T const &comparator) : m_comparator( comparator) {}

				bool match(std::vector<T> const &v) const override {
					for (auto const& el : v) {
						if (el == m_comparator) {
							return true;
						}
					}
					return false;
				}

				std::string describe() const override {
					return "Contains: " + ::Catch::Detail::stringify( m_comparator );
				}

				T const& m_comparator;
			};

			template<typename T>
			struct ContainsMatcher : MatcherBase<std::vector<T>> {

				ContainsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}

				bool match(std::vector<T> const &v) const override {
					// !TBD: see note in EqualsMatcher
					if (m_comparator.size() > v.size())
						return false;
					for (auto const& comparator : m_comparator) {
						auto present = false;
						for (const auto& el : v) {
							if (el == comparator) {
								present = true;
								break;
							}
						}
						if (!present) {
							return false;
						}
					}
					return true;
				}
				std::string describe() const override {
					return "Contains: " + ::Catch::Detail::stringify( m_comparator );
				}

				std::vector<T> const& m_comparator;
			};

			template<typename T>
			struct EqualsMatcher : MatcherBase<std::vector<T>> {

				EqualsMatcher(std::vector<T> const &comparator) : m_comparator( comparator ) {}

				bool match(std::vector<T> const &v) const override {
					// !TBD: This currently works if all elements can be compared using !=
					// - a more general approach would be via a compare template that defaults
					// to using !=. but could be specialised for, e.g. std::vector<T> etc
					// - then just call that directly
					if (m_comparator.size() != v.size())
						return false;
					for (std::size_t i = 0; i < v.size(); ++i)
						if (m_comparator[i] != v[i])
							return false;
					return true;
				}
				std::string describe() const override {
					return "Equals: " + ::Catch::Detail::stringify( m_comparator );
				}
				std::vector<T> const& m_comparator;
			};

			template<typename T>
			struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
				UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
				bool match(std::vector<T> const& vec) const override {
					// Note: This is a reimplementation of std::is_permutation,
					//       because I don't want to include <algorithm> inside the common path
					if (m_target.size() != vec.size()) {
						return false;
					}
					auto lfirst = m_target.begin(), llast = m_target.end();
					auto rfirst = vec.begin(), rlast = vec.end();
					// Cut common prefix to optimize checking of permuted parts
					while (lfirst != llast && *lfirst == *rfirst) {
						++lfirst; ++rfirst;
					}
					if (lfirst == llast) {
						return true;
					}

					for (auto mid = lfirst; mid != llast; ++mid) {
						// Skip already counted items
						if (Detail::contains(lfirst, mid, *mid)) {
							continue;
						}
						size_t num_vec = Detail::count(rfirst, rlast, *mid);
						if (num_vec == 0 || Detail::count(lfirst, llast, *mid) != num_vec) {
							return false;
						}
					}

					return true;
				}

				std::string describe() const override {
					return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
				}
			private:
				std::vector<T> const& m_target;
			};

		} // namespace Vector

		  // The following functions create the actual matcher objects.
		  // This allows the types to be inferred

		template<typename T>
		Vector::ContainsMatcher<T> Contains( std::vector<T> const& comparator ) {
			return Vector::ContainsMatcher<T>( comparator );
		}

		template<typename T>
		Vector::ContainsElementMatcher<T> VectorContains( T const& comparator ) {
			return Vector::ContainsElementMatcher<T>( comparator );
		}

		template<typename T>
		Vector::EqualsMatcher<T> Equals( std::vector<T> const& comparator ) {
			return Vector::EqualsMatcher<T>( comparator );
		}

		template<typename T>
		Vector::UnorderedEqualsMatcher<T> UnorderedEquals(std::vector<T> const& target) {
			return Vector::UnorderedEqualsMatcher<T>(target);
		}

	} // namespace Matchers
} // namespace Catch

  // end catch_matchers_vector.h
namespace Catch {

	template<typename ArgT, typename MatcherT>
	class MatchExpr : public ITransientExpression {
		ArgT const& m_arg;
		MatcherT m_matcher;
		StringRef m_matcherString;
	public:
		MatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString )
			:   ITransientExpression{ true, matcher.match( arg ) },
			m_arg( arg ),
			m_matcher( matcher ),
			m_matcherString( matcherString )
		{}

		void streamReconstructedExpression( std::ostream &os ) const override {
			auto matcherAsString = m_matcher.toString();
			os << Catch::Detail::stringify( m_arg ) << ' ';
			if( matcherAsString == Detail::unprintableString )
				os << m_matcherString;
			else
				os << matcherAsString;
		}
	};

	using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

	void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  );

	template<typename ArgT, typename MatcherT>
	auto makeMatchExpr( ArgT const& arg, MatcherT const& matcher, StringRef const& matcherString  ) -> MatchExpr<ArgT, MatcherT> {
		return MatchExpr<ArgT, MatcherT>( arg, matcher, matcherString );
	}

} // namespace Catch

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT( macroName, matcher, resultDisposition, arg ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        INTERNAL_CATCH_TRY { \
            catchAssertionHandler.handleExpr( Catch::makeMatchExpr( arg, matcher, #matcher##_catch_sr ) ); \
        } INTERNAL_CATCH_CATCH( catchAssertionHandler ) \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  ///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES( macroName, exceptionType, resultDisposition, matcher, ... ) \
    do { \
        Catch::AssertionHandler catchAssertionHandler( macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY(exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher), resultDisposition ); \
        if( catchAssertionHandler.allowThrows() ) \
            try { \
                static_cast<void>(__VA_ARGS__ ); \
                catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
            } \
            catch( exceptionType const& ex ) { \
                catchAssertionHandler.handleExpr( Catch::makeMatchExpr( ex, matcher, #matcher##_catch_sr ) ); \
            } \
            catch( ... ) { \
                catchAssertionHandler.handleUnexpectedInflightException(); \
            } \
        else \
            catchAssertionHandler.handleThrowingCallSkipped(); \
        INTERNAL_CATCH_REACT( catchAssertionHandler ) \
    } while( false )

  // end catch_capture_matchers.h
#endif
  // start catch_generators.hpp

  // start catch_interfaces_generatortracker.h


#include <memory>

namespace Catch {

	namespace Generators {
		class GeneratorBase {
		protected:
			size_t m_size = 0;

		public:
			GeneratorBase( size_t size ) : m_size( size ) {}
			virtual ~GeneratorBase();
			auto size() const -> size_t { return m_size; }
		};
		using GeneratorBasePtr = std::unique_ptr<GeneratorBase>;

	} // namespace Generators

	struct IGeneratorTracker {
		virtual ~IGeneratorTracker();
		virtual auto hasGenerator() const -> bool = 0;
		virtual auto getGenerator() const -> Generators::GeneratorBasePtr const& = 0;
		virtual void setGenerator( Generators::GeneratorBasePtr&& generator ) = 0;
		virtual auto getIndex() const -> std::size_t = 0;
	};

} // namespace Catch

  // end catch_interfaces_generatortracker.h
  // start catch_enforce.h

#include <stdexcept>

namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
	template <typename Ex>
	[[noreturn]]
	void throw_exception(Ex const& e) {
		throw e;
	}
#else // ^^ Exceptions are enabled //  Exceptions are disabled vv
	[[noreturn]]
	void throw_exception(std::exception const& e);
#endif
} // namespace Catch;

#define CATCH_PREPARE_EXCEPTION( type, msg ) \
    type( ( Catch::ReusableStringStream() << msg ).str() )
#define CATCH_INTERNAL_ERROR( msg ) \
    Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::logic_error, CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg))
#define CATCH_ERROR( msg ) \
    Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::domain_error, msg ))
#define CATCH_RUNTIME_ERROR( msg ) \
    Catch::throw_exception(CATCH_PREPARE_EXCEPTION( std::runtime_error, msg ))
#define CATCH_ENFORCE( condition, msg ) \
    do{ if( !(condition) ) CATCH_ERROR( msg ); } while(false)

  // end catch_enforce.h
#include <memory>
#include <vector>
#include <cassert>

#include <utility>

namespace Catch {
	namespace Generators {

		// !TBD move this into its own location?
		namespace pf{
			template<typename T, typename... Args>
			std::unique_ptr<T> make_unique( Args&&... args ) {
				return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
			}
		}

		template<typename T>
		struct IGenerator {
			virtual ~IGenerator() {}
			virtual auto get( size_t index ) const -> T = 0;
		};

		template<typename T>
		class SingleValueGenerator : public IGenerator<T> {
			T m_value;
		public:
			SingleValueGenerator( T const& value ) : m_value( value ) {}

			auto get( size_t ) const -> T override {
				return m_value;
			}
		};

		template<typename T>
		class FixedValuesGenerator : public IGenerator<T> {
			std::vector<T> m_values;

		public:
			FixedValuesGenerator( std::initializer_list<T> values ) : m_values( values ) {}

			auto get( size_t index ) const -> T override {
				return m_values[index];
			}
		};

		template<typename T>
		class RangeGenerator : public IGenerator<T> {
			T const m_first;
			T const m_last;

		public:
			RangeGenerator( T const& first, T const& last ) : m_first( first ), m_last( last ) {
				assert( m_last > m_first );
			}

			auto get( size_t index ) const -> T override {
				// ToDo:: introduce a safe cast to catch potential overflows
				return static_cast<T>(m_first+index);
			}
		};

		template<typename T>
		struct NullGenerator : IGenerator<T> {
			auto get( size_t ) const -> T override {
				CATCH_INTERNAL_ERROR("A Null Generator is always empty");
			}
		};

		template<typename T>
		class Generator {
			std::unique_ptr<IGenerator<T>> m_generator;
			size_t m_size;

		public:
			Generator( size_t size, std::unique_ptr<IGenerator<T>> generator )
				:   m_generator( std::move( generator ) ),
				m_size( size )
			{}

			auto size() const -> size_t { return m_size; }
			auto operator[]( size_t index ) const -> T {
				assert( index < m_size );
				return m_generator->get( index );
			}
		};

		std::vector<size_t> randomiseIndices( size_t selectionSize, size_t sourceSize );

		template<typename T>
		class GeneratorRandomiser : public IGenerator<T> {
			Generator<T> m_baseGenerator;

			std::vector<size_t> m_indices;
		public:
			GeneratorRandomiser( Generator<T>&& baseGenerator, size_t numberOfItems )
				:   m_baseGenerator( std::move( baseGenerator ) ),
				m_indices( randomiseIndices( numberOfItems, m_baseGenerator.size() ) )
			{}

			auto get( size_t index ) const -> T override {
				return m_baseGenerator[m_indices[index]];
			}
		};

		template<typename T>
		struct RequiresASpecialisationFor;

		template<typename T>
		auto all() -> Generator<T> { return RequiresASpecialisationFor<T>(); }

		template<>
		auto all<int>() -> Generator<int>;

		template<typename T>
		auto range( T const& first, T const& last ) -> Generator<T> {
			return Generator<T>( (last-first), pf::make_unique<RangeGenerator<T>>( first, last ) );
		}

		template<typename T>
		auto random( T const& first, T const& last ) -> Generator<T> {
			auto gen = range( first, last );
			auto size = gen.size();

			return Generator<T>( size, pf::make_unique<GeneratorRandomiser<T>>( std::move( gen ), size ) );
		}
		template<typename T>
		auto random( size_t size ) -> Generator<T> {
			return Generator<T>( size, pf::make_unique<GeneratorRandomiser<T>>( all<T>(), size ) );
		}

		template<typename T>
		auto values( std::initializer_list<T> values ) -> Generator<T> {
			return Generator<T>( values.size(), pf::make_unique<FixedValuesGenerator<T>>( values ) );
		}
		template<typename T>
		auto value( T const& val ) -> Generator<T> {
			return Generator<T>( 1, pf::make_unique<SingleValueGenerator<T>>( val ) );
		}

		template<typename T>
		auto as() -> Generator<T> {
			return Generator<T>( 0, pf::make_unique<NullGenerator<T>>() );
		}

		template<typename... Ts>
		auto table( std::initializer_list<std::tuple<Ts...>>&& tuples ) -> Generator<std::tuple<Ts...>> {
			return values<std::tuple<Ts...>>( std::forward<std::initializer_list<std::tuple<Ts...>>>( tuples ) );
		}

		template<typename T>
		struct Generators : GeneratorBase {
			std::vector<Generator<T>> m_generators;

			using type = T;

			Generators() : GeneratorBase( 0 ) {}

			void populate( T&& val ) {
				m_size += 1;
				m_generators.emplace_back( value( std::move( val ) ) );
			}
			template<typename U>
			void populate( U&& val ) {
				populate( T( std::move( val ) ) );
			}
			void populate( Generator<T>&& generator ) {
				m_size += generator.size();
				m_generators.emplace_back( std::move( generator ) );
			}

			template<typename U, typename... Gs>
			void populate( U&& valueOrGenerator, Gs... moreGenerators ) {
				populate( std::forward<U>( valueOrGenerator ) );
				populate( std::forward<Gs>( moreGenerators )... );
			}

			auto operator[]( size_t index ) const -> T {
				size_t sizes = 0;
				for( auto const& gen : m_generators ) {
					auto localIndex = index-sizes;
					sizes += gen.size();
					if( index < sizes )
						return gen[localIndex];
				}
				CATCH_INTERNAL_ERROR("Index '" << index << "' is out of range (" << sizes << ')');
			}
		};

		template<typename T, typename... Gs>
		auto makeGenerators( Generator<T>&& generator, Gs... moreGenerators ) -> Generators<T> {
			Generators<T> generators;
			generators.m_generators.reserve( 1+sizeof...(Gs) );
			generators.populate( std::move( generator ), std::forward<Gs>( moreGenerators )... );
			return generators;
		}
		template<typename T>
		auto makeGenerators( Generator<T>&& generator ) -> Generators<T> {
			Generators<T> generators;
			generators.populate( std::move( generator ) );
			return generators;
		}
		template<typename T, typename... Gs>
		auto makeGenerators( T&& val, Gs... moreGenerators ) -> Generators<T> {
			return makeGenerators( value( std::forward<T>( val ) ), std::forward<Gs>( moreGenerators )... );
		}
		template<typename T, typename U, typename... Gs>
		auto makeGenerators( U&& val, Gs... moreGenerators ) -> Generators<T> {
			return makeGenerators( value( T( std::forward<U>( val ) ) ), std::forward<Gs>( moreGenerators )... );
		}

		auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker&;

		template<typename L>
		// Note: The type after -> is weird, because VS2015 cannot parse
		//       the expression used in the typedef inside, when it is in
		//       return type.
		auto generate( SourceLineInfo const& lineInfo, L const& generatorExpression ) -> decltype(std::declval<decltype(generatorExpression())>()[0]) {
			using UnderlyingType = typename decltype(generatorExpression())::type;

			IGeneratorTracker& tracker = acquireGeneratorTracker( lineInfo );
			if( !tracker.hasGenerator() )
				tracker.setGenerator( pf::make_unique<Generators<UnderlyingType>>( generatorExpression() ) );

			auto const& generator = static_cast<Generators<UnderlyingType> const&>( *tracker.getGenerator() );
			return generator[tracker.getIndex()];
		}

	} // namespace Generators
} // namespace Catch

#define GENERATE( ... ) \
    Catch::Generators::generate( CATCH_INTERNAL_LINEINFO, []{ using namespace Catch::Generators; return makeGenerators( __VA_ARGS__ ); } )

  // end catch_generators.hpp

  // These files are included here so the single_include script doesn't put them
  // in the conditionally compiled sections
  // start catch_test_case_info.h

#include <string>
#include <vector>
#include <memory>

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch {

	struct ITestInvoker;

	struct TestCaseInfo {
		enum SpecialProperties{
			None = 0,
			IsHidden = 1 << 1,
			ShouldFail = 1 << 2,
			MayFail = 1 << 3,
			Throws = 1 << 4,
			NonPortable = 1 << 5,
			Benchmark = 1 << 6
		};

		TestCaseInfo(   std::string const& _name,
			std::string const& _className,
			std::string const& _description,
			std::vector<std::string> const& _tags,
			SourceLineInfo const& _lineInfo );

		friend void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags );

		bool isHidden() const;
		bool throws() const;
		bool okToFail() const;
		bool expectedToFail() const;

		std::string tagsAsString() const;

		std::string name;
		std::string className;
		std::string description;
		std::vector<std::string> tags;
		std::vector<std::string> lcaseTags;
		SourceLineInfo lineInfo;
		SpecialProperties properties;
	};

	class TestCase : public TestCaseInfo {
	public:

		TestCase( ITestInvoker* testCase, TestCaseInfo&& info );

		TestCase withName( std::string const& _newName ) const;

		void invoke() const;

		TestCaseInfo const& getTestCaseInfo() const;

		bool operator == ( TestCase const& other ) const;
		bool operator < ( TestCase const& other ) const;

	private:
		std::shared_ptr<ITestInvoker> test;
	};

	TestCase makeTestCase(  ITestInvoker* testCase,
		std::string const& className,
		NameAndTags const& nameAndTags,
		SourceLineInfo const& lineInfo );
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_case_info.h
// start catch_interfaces_runner.h

namespace Catch {

	struct IRunner {
		virtual ~IRunner();
		virtual bool aborting() const = 0;
	};
}

// end catch_interfaces_runner.h

#ifdef __OBJC__
// start catch_objc.hpp

#import <objc/runtime.h>

#include <string>

// NB. Any general catch headers included here must be included
// in catch.hpp first to make sure they are included by the single
// header for non obj-usage

///////////////////////////////////////////////////////////////////////////////
// This protocol is really only here for (self) documenting purposes, since
// all its methods are optional.
@protocol OcFixture

@optional

-(void) setUp;
-(void) tearDown;

@end

namespace Catch {

	class OcMethod : public ITestInvoker {

	public:
		OcMethod( Class cls, SEL sel ) : m_cls( cls ), m_sel( sel ) {}

		virtual void invoke() const {
			id obj = [[m_cls alloc] init];

			performOptionalSelector( obj, @selector(setUp)  );
			performOptionalSelector( obj, m_sel );
			performOptionalSelector( obj, @selector(tearDown)  );

			arcSafeRelease( obj );
		}
	private:
		virtual ~OcMethod() {}

		Class m_cls;
		SEL m_sel;
	};

	namespace Detail{

		inline std::string getAnnotation(   Class cls,
			std::string const& annotationName,
			std::string const& testCaseName ) {
			NSString* selStr = [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(), testCaseName.c_str()];
				SEL sel = NSSelectorFromString( selStr );
			arcSafeRelease( selStr );
			id value = performOptionalSelector( cls, sel );
			if( value )
				return [(NSString*)value UTF8String];
			return "";
		}
	}

	inline std::size_t registerTestMethods() {
		std::size_t noTestMethods = 0;
		int noClasses = objc_getClassList( nullptr, 0 );

		Class* classes = (CATCH_UNSAFE_UNRETAINED Class *)malloc( sizeof(Class) * noClasses);
		objc_getClassList( classes, noClasses );

		for( int c = 0; c < noClasses; c++ ) {
			Class cls = classes[c];
			{
				u_int count;
				Method* methods = class_copyMethodList( cls, &count );
				for( u_int m = 0; m < count ; m++ ) {
					SEL selector = method_getName(methods[m]);
					std::string methodName = sel_getName(selector);
					if( startsWith( methodName, "Catch_TestCase_" ) ) {
						std::string testCaseName = methodName.substr( 15 );
						std::string name = Detail::getAnnotation( cls, "Name", testCaseName );
						std::string desc = Detail::getAnnotation( cls, "Description", testCaseName );
						const char* className = class_getName( cls );

						getMutableRegistryHub().registerTest( makeTestCase( new OcMethod( cls, selector ), className, NameAndTags( name.c_str(), desc.c_str() ), SourceLineInfo("",0) ) );
						noTestMethods++;
					}
				}
				free(methods);
			}
		}
		return noTestMethods;
	}

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)

	namespace Matchers {
		namespace Impl {
			namespace NSStringMatchers {

				struct StringHolder : MatcherBase<NSString*>{
					StringHolder( NSString* substr ) : m_substr( [substr copy] ){}
					StringHolder( StringHolder const& other ) : m_substr( [other.m_substr copy] ){}
					StringHolder() {
						arcSafeRelease( m_substr );
					}

					bool match( NSString* arg ) const override {
						return false;
					}

					NSString* CATCH_ARC_STRONG m_substr;
				};

				struct Equals : StringHolder {
					Equals( NSString* substr ) : StringHolder( substr ){}

					bool match( NSString* str ) const override {
						return  (str != nil || m_substr == nil ) &&
							[str isEqualToString:m_substr];
					}

					std::string describe() const override {
						return "equals string: " + Catch::Detail::stringify( m_substr );
					}
				};

				struct Contains : StringHolder {
					Contains( NSString* substr ) : StringHolder( substr ){}

					bool match( NSString* str ) const {
						return  (str != nil || m_substr == nil ) &&
							[str rangeOfString:m_substr].location != NSNotFound;
					}

					std::string describe() const override {
						return "contains string: " + Catch::Detail::stringify( m_substr );
					}
				};

				struct StartsWith : StringHolder {
					StartsWith( NSString* substr ) : StringHolder( substr ){}

					bool match( NSString* str ) const override {
						return  (str != nil || m_substr == nil ) &&
							[str rangeOfString:m_substr].location == 0;
					}

					std::string describe() const override {
						return "starts with: " + Catch::Detail::stringify( m_substr );
					}
				};
				struct EndsWith : StringHolder {
					EndsWith( NSString* substr ) : StringHolder( substr ){}

					bool match( NSString* str ) const override {
						return  (str != nil || m_substr == nil ) &&
							[str rangeOfString:m_substr].location == [str length] - [m_substr length];
					}

					std::string describe() const override {
						return "ends with: " + Catch::Detail::stringify( m_substr );
					}
				};

			} // namespace NSStringMatchers
		} // namespace Impl

		inline Impl::NSStringMatchers::Equals
			Equals( NSString* substr ){ return Impl::NSStringMatchers::Equals( substr ); }

		inline Impl::NSStringMatchers::Contains
			Contains( NSString* substr ){ return Impl::NSStringMatchers::Contains( substr ); }

		inline Impl::NSStringMatchers::StartsWith
			StartsWith( NSString* substr ){ return Impl::NSStringMatchers::StartsWith( substr ); }

		inline Impl::NSStringMatchers::EndsWith
			EndsWith( NSString* substr ){ return Impl::NSStringMatchers::EndsWith( substr ); }

	} // namespace Matchers

	using namespace Matchers;

#endif // CATCH_CONFIG_DISABLE_MATCHERS

} // namespace Catch

  ///////////////////////////////////////////////////////////////////////////////
#define OC_MAKE_UNIQUE_NAME( root, uniqueSuffix ) root##uniqueSuffix
#define OC_TEST_CASE2( name, desc, uniqueSuffix ) \
+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Name_test_, uniqueSuffix ) \
{ \
return @ name; \
} \
+(NSString*) OC_MAKE_UNIQUE_NAME( Catch_Description_test_, uniqueSuffix ) \
{ \
return @ desc; \
} \
-(void) OC_MAKE_UNIQUE_NAME( Catch_TestCase_test_, uniqueSuffix )

#define OC_TEST_CASE( name, desc ) OC_TEST_CASE2( name, desc, __LINE__ )

  // end catch_objc.hpp
#endif

#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
  // start catch_external_interfaces.h

  // start catch_reporter_bases.hpp

  // start catch_interfaces_reporter.h

  // start catch_config.hpp

  // start catch_test_spec_parser.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

  // start catch_test_spec.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

  // start catch_wildcard_pattern.h

namespace Catch
{
	class WildcardPattern {
		enum WildcardPosition {
			NoWildcard = 0,
			WildcardAtStart = 1,
			WildcardAtEnd = 2,
			WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
		};

	public:

		WildcardPattern( std::string const& pattern, CaseSensitive::Choice caseSensitivity );
		virtual ~WildcardPattern() = default;
		virtual bool matches( std::string const& str ) const;

	private:
		std::string adjustCase( std::string const& str ) const;
		CaseSensitive::Choice m_caseSensitivity;
		WildcardPosition m_wildcard = NoWildcard;
		std::string m_pattern;
	};
}

// end catch_wildcard_pattern.h
#include <string>
#include <vector>
#include <memory>

namespace Catch {

	class TestSpec {
		struct Pattern {
			virtual ~Pattern();
			virtual bool matches( TestCaseInfo const& testCase ) const = 0;
		};
		using PatternPtr = std::shared_ptr<Pattern>;

		class NamePattern : public Pattern {
		public:
			NamePattern( std::string const& name );
			virtual ~NamePattern();
			virtual bool matches( TestCaseInfo const& testCase ) const override;
		private:
			WildcardPattern m_wildcardPattern;
		};

		class TagPattern : public Pattern {
		public:
			TagPattern( std::string const& tag );
			virtual ~TagPattern();
			virtual bool matches( TestCaseInfo const& testCase ) const override;
		private:
			std::string m_tag;
		};

		class ExcludedPattern : public Pattern {
		public:
			ExcludedPattern( PatternPtr const& underlyingPattern );
			virtual ~ExcludedPattern();
			virtual bool matches( TestCaseInfo const& testCase ) const override;
		private:
			PatternPtr m_underlyingPattern;
		};

		struct Filter {
			std::vector<PatternPtr> m_patterns;

			bool matches( TestCaseInfo const& testCase ) const;
		};

	public:
		bool hasFilters() const;
		bool matches( TestCaseInfo const& testCase ) const;

	private:
		std::vector<Filter> m_filters;

		friend class TestSpecParser;
	};
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec.h
// start catch_interfaces_tag_alias_registry.h

#include <string>

namespace Catch {

	struct TagAlias;

	struct ITagAliasRegistry {
		virtual ~ITagAliasRegistry();
		// Nullptr if not present
		virtual TagAlias const* find( std::string const& alias ) const = 0;
		virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;

		static ITagAliasRegistry const& get();
	};

} // end namespace Catch

  // end catch_interfaces_tag_alias_registry.h
namespace Catch {

	class TestSpecParser {
		enum Mode{ None, Name, QuotedName, Tag, EscapedName };
		Mode m_mode = None;
		bool m_exclusion = false;
		std::size_t m_start = std::string::npos, m_pos = 0;
		std::string m_arg;
		std::vector<std::size_t> m_escapeChars;
		TestSpec::Filter m_currentFilter;
		TestSpec m_testSpec;
		ITagAliasRegistry const* m_tagAliases = nullptr;

	public:
		TestSpecParser( ITagAliasRegistry const& tagAliases );

		TestSpecParser& parse( std::string const& arg );
		TestSpec testSpec();

	private:
		void visitChar( char c );
		void startNewMode( Mode mode, std::size_t start );
		void escape();
		std::string subString() const;

		template<typename T>
		void addPattern() {
			std::string token = subString();
			for( std::size_t i = 0; i < m_escapeChars.size(); ++i )
				token = token.substr( 0, m_escapeChars[i]-m_start-i ) + token.substr( m_escapeChars[i]-m_start-i+1 );
			m_escapeChars.clear();
			if( startsWith( token, "exclude:" ) ) {
				m_exclusion = true;
				token = token.substr( 8 );
			}
			if( !token.empty() ) {
				TestSpec::PatternPtr pattern = std::make_shared<T>( token );
				if( m_exclusion )
					pattern = std::make_shared<TestSpec::ExcludedPattern>( pattern );
				m_currentFilter.m_patterns.push_back( pattern );
			}
			m_exclusion = false;
			m_mode = None;
		}

		void addFilter();
	};
	TestSpec parseTestSpec( std::string const& arg );

} // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

  // end catch_test_spec_parser.h
  // start catch_interfaces_config.h

#include <iosfwd>
#include <string>
#include <vector>
#include <memory>

namespace Catch {

	enum class Verbosity {
		Quiet = 0,
		Normal,
		High
	};

	struct WarnAbout { enum What {
		Nothing = 0x00,
		NoAssertions = 0x01,
		NoTests = 0x02
	}; };

	struct ShowDurations { enum OrNot {
		DefaultForReporter,
		Always,
		Never
	}; };
	struct RunTests { enum InWhatOrder {
		InDeclarationOrder,
		InLexicographicalOrder,
		InRandomOrder
	}; };
	struct UseColour { enum YesOrNo {
		Auto,
		Yes,
		No
	}; };
	struct WaitForKeypress { enum When {
		Never,
		BeforeStart = 1,
		BeforeExit = 2,
		BeforeStartAndExit = BeforeStart | BeforeExit
	}; };

	class TestSpec;

	struct IConfig : NonCopyable {

		virtual ~IConfig();

		virtual bool allowThrows() const = 0;
		virtual std::ostream& stream() const = 0;
		virtual std::string name() const = 0;
		virtual bool includeSuccessfulResults() const = 0;
		virtual bool shouldDebugBreak() const = 0;
		virtual bool warnAboutMissingAssertions() const = 0;
		virtual bool warnAboutNoTests() const = 0;
		virtual int abortAfter() const = 0;
		virtual bool showInvisibles() const = 0;
		virtual ShowDurations::OrNot showDurations() const = 0;
		virtual TestSpec const& testSpec() const = 0;
		virtual bool hasTestFilters() const = 0;
		virtual RunTests::InWhatOrder runOrder() const = 0;
		virtual unsigned int rngSeed() const = 0;
		virtual int benchmarkResolutionMultiple() const = 0;
		virtual UseColour::YesOrNo useColour() const = 0;
		virtual std::vector<std::string> const& getSectionsToRun() const = 0;
		virtual Verbosity verbosity() const = 0;
	};

	using IConfigPtr = std::shared_ptr<IConfig const>;
}

// end catch_interfaces_config.h
// Libstdc++ doesn't like incomplete classes for unique_ptr

#include <memory>
#include <vector>
#include <string>

#ifndef CATCH_CONFIG_CONSOLE_WIDTH
#define CATCH_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {

	struct IStream;

	struct ConfigData {
		bool listTests = false;
		bool listTags = false;
		bool listReporters = false;
		bool listTestNamesOnly = false;

		bool showSuccessfulTests = false;
		bool shouldDebugBreak = false;
		bool noThrow = false;
		bool showHelp = false;
		bool showInvisibles = false;
		bool filenamesAsTags = false;
		bool libIdentify = false;

		int abortAfter = -1;
		unsigned int rngSeed = 0;
		int benchmarkResolutionMultiple = 100;

		Verbosity verbosity = Verbosity::Normal;
		WarnAbout::What warnings = WarnAbout::Nothing;
		ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
		RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
		UseColour::YesOrNo useColour = UseColour::Auto;
		WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;

		std::string outputFilename;
		std::string name;
		std::string processName;
#ifndef CATCH_CONFIG_DEFAULT_REPORTER
#define CATCH_CONFIG_DEFAULT_REPORTER "console"
#endif
		std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
#undef CATCH_CONFIG_DEFAULT_REPORTER

		std::vector<std::string> testsOrTags;
		std::vector<std::string> sectionsToRun;
	};

	class Config : public IConfig {
	public:

		Config() = default;
		Config( ConfigData const& data );
		virtual ~Config() = default;

		std::string const& getFilename() const;

		bool listTests() const;
		bool listTestNamesOnly() const;
		bool listTags() const;
		bool listReporters() const;

		std::string getProcessName() const;
		std::string const& getReporterName() const;

		std::vector<std::string> const& getTestsOrTags() const;
		std::vector<std::string> const& getSectionsToRun() const override;

		virtual TestSpec const& testSpec() const override;
		bool hasTestFilters() const override;

		bool showHelp() const;

		// IConfig interface
		bool allowThrows() const override;
		std::ostream& stream() const override;
		std::string name() const override;
		bool includeSuccessfulResults() const override;
		bool warnAboutMissingAssertions() const override;
		bool warnAboutNoTests() const override;
		ShowDurations::OrNot showDurations() const override;
		RunTests::InWhatOrder runOrder() const override;
		unsigned int rngSeed() const override;
		int benchmarkResolutionMultiple() const override;
		UseColour::YesOrNo useColour() const override;
		bool shouldDebugBreak() const override;
		int abortAfter() const override;
		bool showInvisibles() const override;
		Verbosity verbosity() const override;

	private:

		IStream const* openStream();
		ConfigData m_data;

		std::unique_ptr<IStream const> m_stream;
		TestSpec m_testSpec;
		bool m_hasTestFilters = false;
	};

} // end namespace Catch

  // end catch_config.hpp
  // start catch_assertionresult.h

#include <string>

namespace Catch {

	struct AssertionResultData
	{
		AssertionResultData() = delete;

		AssertionResultData( ResultWas::OfType _resultType, LazyExpression const& _lazyExpression );

		std::string message;
		mutable std::string reconstructedExpression;
		LazyExpression lazyExpression;
		ResultWas::OfType resultType;

		std::string reconstructExpression() const;
	};

	class AssertionResult {
	public:
		AssertionResult() = delete;
		AssertionResult( AssertionInfo const& info, AssertionResultData const& data );

		bool isOk() const;
		bool succeeded() const;
		ResultWas::OfType getResultType() const;
		bool hasExpression() const;
		bool hasMessage() const;
		std::string getExpression() const;
		std::string getExpressionInMacro() const;
		bool hasExpandedExpression() const;
		std::string getExpandedExpression() const;
		std::string getMessage() const;
		SourceLineInfo getSourceInfo() const;
		StringRef getTestMacroName() const;

		//protected:
		AssertionInfo m_info;
		AssertionResultData m_resultData;
	};

} // end namespace Catch

  // end catch_assertionresult.h
  // start catch_option.hpp

namespace Catch {

	// An optional type
	template<typename T>
	class Option {
	public:
		Option() : nullableValue( nullptr ) {}
		Option( T const& _value )
			: nullableValue( new( storage ) T( _value ) )
		{}
		Option( Option const& _other )
			: nullableValue( _other ? new( storage ) T( *_other ) : nullptr )
		{}

		~Option() {
			reset();
		}

		Option& operator= ( Option const& _other ) {
			if( &_other != this ) {
				reset();
				if( _other )
					nullableValue = new( storage ) T( *_other );
			}
			return *this;
		}
		Option& operator = ( T const& _value ) {
			reset();
			nullableValue = new( storage ) T( _value );
			return *this;
		}

		void reset() {
			if( nullableValue )
				nullableValue->~T();
			nullableValue = nullptr;
		}

		T& operator*() { return *nullableValue; }
		T const& operator*() const { return *nullableValue; }
		T* operator->() { return nullableValue; }
		const T* operator->() const { return nullableValue; }

		T valueOr( T const& defaultValue ) const {
			return nullableValue ? *nullableValue : defaultValue;
		}

		bool some() const { return nullableValue != nullptr; }
		bool none() const { return nullableValue == nullptr; }

		bool operator !() const { return nullableValue == nullptr; }
		explicit operator bool() const {
			return some();
		}

	private:
		T *nullableValue;
		alignas(alignof(T)) char storage[sizeof(T)];
	};

} // end namespace Catch

  // end catch_option.hpp
#include <string>
#include <iosfwd>
#include <map>
#include <set>
#include <memory>

namespace Catch {

	struct ReporterConfig {
		explicit ReporterConfig( IConfigPtr const& _fullConfig );

		ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream );

		std::ostream& stream() const;
		IConfigPtr fullConfig() const;

	private:
		std::ostream* m_stream;
		IConfigPtr m_fullConfig;
	};

	struct ReporterPreferences {
		bool shouldRedirectStdOut = false;
		bool shouldReportAllAssertions = false;
	};

	template<typename T>
	struct LazyStat : Option<T> {
		LazyStat& operator=( T const& _value ) {
			Option<T>::operator=( _value );
			used = false;
			return *this;
		}
		void reset() {
			Option<T>::reset();
			used = false;
		}
		bool used = false;
	};

	struct TestRunInfo {
		TestRunInfo( std::string const& _name );
		std::string name;
	};
	struct GroupInfo {
		GroupInfo(  std::string const& _name,
			std::size_t _groupIndex,
			std::size_t _groupsCount );

		std::string name;
		std::size_t groupIndex;
		std::size_t groupsCounts;
	};

	struct AssertionStats {
		AssertionStats( AssertionResult const& _assertionResult,
			std::vector<MessageInfo> const& _infoMessages,
			Totals const& _totals );

		AssertionStats( AssertionStats const& )              = default;
		AssertionStats( AssertionStats && )                  = default;
		AssertionStats& operator = ( AssertionStats const& ) = default;
		AssertionStats& operator = ( AssertionStats && )     = default;
		virtual ~AssertionStats();

		AssertionResult assertionResult;
		std::vector<MessageInfo> infoMessages;
		Totals totals;
	};

	struct SectionStats {
		SectionStats(   SectionInfo const& _sectionInfo,
			Counts const& _assertions,
			double _durationInSeconds,
			bool _missingAssertions );
		SectionStats( SectionStats const& )              = default;
		SectionStats( SectionStats && )                  = default;
		SectionStats& operator = ( SectionStats const& ) = default;
		SectionStats& operator = ( SectionStats && )     = default;
		virtual ~SectionStats();

		SectionInfo sectionInfo;
		Counts assertions;
		double durationInSeconds;
		bool missingAssertions;
	};

	struct TestCaseStats {
		TestCaseStats(  TestCaseInfo const& _testInfo,
			Totals const& _totals,
			std::string const& _stdOut,
			std::string const& _stdErr,
			bool _aborting );

		TestCaseStats( TestCaseStats const& )              = default;
		TestCaseStats( TestCaseStats && )                  = default;
		TestCaseStats& operator = ( TestCaseStats const& ) = default;
		TestCaseStats& operator = ( TestCaseStats && )     = default;
		virtual ~TestCaseStats();

		TestCaseInfo testInfo;
		Totals totals;
		std::string stdOut;
		std::string stdErr;
		bool aborting;
	};

	struct TestGroupStats {
		TestGroupStats( GroupInfo const& _groupInfo,
			Totals const& _totals,
			bool _aborting );
		TestGroupStats( GroupInfo const& _groupInfo );

		TestGroupStats( TestGroupStats const& )              = default;
		TestGroupStats( TestGroupStats && )                  = default;
		TestGroupStats& operator = ( TestGroupStats const& ) = default;
		TestGroupStats& operator = ( TestGroupStats && )     = default;
		virtual ~TestGroupStats();

		GroupInfo groupInfo;
		Totals totals;
		bool aborting;
	};

	struct TestRunStats {
		TestRunStats(   TestRunInfo const& _runInfo,
			Totals const& _totals,
			bool _aborting );

		TestRunStats( TestRunStats const& )              = default;
		TestRunStats( TestRunStats && )                  = default;
		TestRunStats& operator = ( TestRunStats const& ) = default;
		TestRunStats& operator = ( TestRunStats && )     = default;
		virtual ~TestRunStats();

		TestRunInfo runInfo;
		Totals totals;
		bool aborting;
	};

	struct BenchmarkInfo {
		std::string name;
	};
	struct BenchmarkStats {
		BenchmarkInfo info;
		std::size_t iterations;
		uint64_t elapsedTimeInNanoseconds;
	};

	struct IStreamingReporter {
		virtual ~IStreamingReporter() = default;

		// Implementing class must also provide the following static methods:
		// static std::string getDescription();
		// static std::set<Verbosity> getSupportedVerbosities()

		virtual ReporterPreferences getPreferences() const = 0;

		virtual void noMatchingTestCases( std::string const& spec ) = 0;

		virtual void testRunStarting( TestRunInfo const& testRunInfo ) = 0;
		virtual void testGroupStarting( GroupInfo const& groupInfo ) = 0;

		virtual void testCaseStarting( TestCaseInfo const& testInfo ) = 0;
		virtual void sectionStarting( SectionInfo const& sectionInfo ) = 0;

		// *** experimental ***
		virtual void benchmarkStarting( BenchmarkInfo const& ) {}

		virtual void assertionStarting( AssertionInfo const& assertionInfo ) = 0;

		// The return value indicates if the messages buffer should be cleared:
		virtual bool assertionEnded( AssertionStats const& assertionStats ) = 0;

		// *** experimental ***
		virtual void benchmarkEnded( BenchmarkStats const& ) {}

		virtual void sectionEnded( SectionStats const& sectionStats ) = 0;
		virtual void testCaseEnded( TestCaseStats const& testCaseStats ) = 0;
		virtual void testGroupEnded( TestGroupStats const& testGroupStats ) = 0;
		virtual void testRunEnded( TestRunStats const& testRunStats ) = 0;

		virtual void skipTest( TestCaseInfo const& testInfo ) = 0;

		// Default empty implementation provided
		virtual void fatalErrorEncountered( StringRef name );

		virtual bool isMulti() const;
	};
	using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;

	struct IReporterFactory {
		virtual ~IReporterFactory();
		virtual IStreamingReporterPtr create( ReporterConfig const& config ) const = 0;
		virtual std::string getDescription() const = 0;
	};
	using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

	struct IReporterRegistry {
		using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
		using Listeners = std::vector<IReporterFactoryPtr>;

		virtual ~IReporterRegistry();
		virtual IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const = 0;
		virtual FactoryMap const& getFactories() const = 0;
		virtual Listeners const& getListeners() const = 0;
	};

} // end namespace Catch

  // end catch_interfaces_reporter.h
#include <algorithm>
#include <cstring>
#include <cfloat>
#include <cstdio>
#include <cassert>
#include <memory>
#include <ostream>

namespace Catch {
	void prepareExpandedExpression(AssertionResult& result);

	// Returns double formatted as %.3f (format expected on output)
	std::string getFormattedDuration( double duration );

	template<typename DerivedT>
	struct StreamingReporterBase : IStreamingReporter {

		StreamingReporterBase( ReporterConfig const& _config )
			:   m_config( _config.fullConfig() ),
			stream( _config.stream() )
		{
			m_reporterPrefs.shouldRedirectStdOut = false;
			if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
				CATCH_ERROR( "Verbosity level not supported by this reporter" );
		}

		ReporterPreferences getPreferences() const override {
			return m_reporterPrefs;
		}

		static std::set<Verbosity> getSupportedVerbosities() {
			return { Verbosity::Normal };
		}

		~StreamingReporterBase() override = default;

		void noMatchingTestCases(std::string const&) override {}

		void testRunStarting(TestRunInfo const& _testRunInfo) override {
			currentTestRunInfo = _testRunInfo;
		}
		void testGroupStarting(GroupInfo const& _groupInfo) override {
			currentGroupInfo = _groupInfo;
		}

		void testCaseStarting(TestCaseInfo const& _testInfo) override  {
			currentTestCaseInfo = _testInfo;
		}
		void sectionStarting(SectionInfo const& _sectionInfo) override {
			m_sectionStack.push_back(_sectionInfo);
		}

		void sectionEnded(SectionStats const& /* _sectionStats */) override {
			m_sectionStack.pop_back();
		}
		void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
			currentTestCaseInfo.reset();
		}
		void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
			currentGroupInfo.reset();
		}
		void testRunEnded(TestRunStats const& /* _testRunStats */) override {
			currentTestCaseInfo.reset();
			currentGroupInfo.reset();
			currentTestRunInfo.reset();
		}

		void skipTest(TestCaseInfo const&) override {
			// Don't do anything with this by default.
			// It can optionally be overridden in the derived class.
		}

		IConfigPtr m_config;
		std::ostream& stream;

		LazyStat<TestRunInfo> currentTestRunInfo;
		LazyStat<GroupInfo> currentGroupInfo;
		LazyStat<TestCaseInfo> currentTestCaseInfo;

		std::vector<SectionInfo> m_sectionStack;
		ReporterPreferences m_reporterPrefs;
	};

	template<typename DerivedT>
	struct CumulativeReporterBase : IStreamingReporter {
		template<typename T, typename ChildNodeT>
		struct Node {
			explicit Node( T const& _value ) : value( _value ) {}
			virtual ~Node() {}

			using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
			T value;
			ChildNodes children;
		};
		struct SectionNode {
			explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
			virtual ~SectionNode() = default;

			bool operator == (SectionNode const& other) const {
				return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
			}
			bool operator == (std::shared_ptr<SectionNode> const& other) const {
				return operator==(*other);
			}

			SectionStats stats;
			using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
			using Assertions = std::vector<AssertionStats>;
			ChildSections childSections;
			Assertions assertions;
			std::string stdOut;
			std::string stdErr;
		};

		struct BySectionInfo {
			BySectionInfo( SectionInfo const& other ) : m_other( other ) {}
			BySectionInfo( BySectionInfo const& other ) : m_other( other.m_other ) {}
			bool operator() (std::shared_ptr<SectionNode> const& node) const {
				return ((node->stats.sectionInfo.name == m_other.name) &&
					(node->stats.sectionInfo.lineInfo == m_other.lineInfo));
			}
			void operator=(BySectionInfo const&) = delete;

		private:
			SectionInfo const& m_other;
		};

		using TestCaseNode = Node<TestCaseStats, SectionNode>;
		using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
		using TestRunNode = Node<TestRunStats, TestGroupNode>;

		CumulativeReporterBase( ReporterConfig const& _config )
			:   m_config( _config.fullConfig() ),
			stream( _config.stream() )
		{
			m_reporterPrefs.shouldRedirectStdOut = false;
			if( !DerivedT::getSupportedVerbosities().count( m_config->verbosity() ) )
				CATCH_ERROR( "Verbosity level not supported by this reporter" );
		}
		~CumulativeReporterBase() override = default;

		ReporterPreferences getPreferences() const override {
			return m_reporterPrefs;
		}

		static std::set<Verbosity> getSupportedVerbosities() {
			return { Verbosity::Normal };
		}

		void testRunStarting( TestRunInfo const& ) override {}
		void testGroupStarting( GroupInfo const& ) override {}

		void testCaseStarting( TestCaseInfo const& ) override {}

		void sectionStarting( SectionInfo const& sectionInfo ) override {
			SectionStats incompleteStats( sectionInfo, Counts(), 0, false );
			std::shared_ptr<SectionNode> node;
			if( m_sectionStack.empty() ) {
				if( !m_rootSection )
					m_rootSection = std::make_shared<SectionNode>( incompleteStats );
				node = m_rootSection;
			}
			else {
				SectionNode& parentNode = *m_sectionStack.back();
				auto it =
					std::find_if(   parentNode.childSections.begin(),
						parentNode.childSections.end(),
						BySectionInfo( sectionInfo ) );
				if( it == parentNode.childSections.end() ) {
					node = std::make_shared<SectionNode>( incompleteStats );
					parentNode.childSections.push_back( node );
				}
				else
					node = *it;
			}
			m_sectionStack.push_back( node );
			m_deepestSection = std::move(node);
		}

		void assertionStarting(AssertionInfo const&) override {}

		bool assertionEnded(AssertionStats const& assertionStats) override {
			assert(!m_sectionStack.empty());
			// AssertionResult holds a pointer to a temporary DecomposedExpression,
			// which getExpandedExpression() calls to build the expression string.
			// Our section stack copy of the assertionResult will likely outlive the
			// temporary, so it must be expanded or discarded now to avoid calling
			// a destroyed object later.
			prepareExpandedExpression(const_cast<AssertionResult&>( assertionStats.assertionResult ) );
			SectionNode& sectionNode = *m_sectionStack.back();
			sectionNode.assertions.push_back(assertionStats);
			return true;
		}
		void sectionEnded(SectionStats const& sectionStats) override {
			assert(!m_sectionStack.empty());
			SectionNode& node = *m_sectionStack.back();
			node.stats = sectionStats;
			m_sectionStack.pop_back();
		}
		void testCaseEnded(TestCaseStats const& testCaseStats) override {
			auto node = std::make_shared<TestCaseNode>(testCaseStats);
			assert(m_sectionStack.size() == 0);
			node->children.push_back(m_rootSection);
			m_testCases.push_back(node);
			m_rootSection.reset();

			assert(m_deepestSection);
			m_deepestSection->stdOut = testCaseStats.stdOut;
			m_deepestSection->stdErr = testCaseStats.stdErr;
		}
		void testGroupEnded(TestGroupStats const& testGroupStats) override {
			auto node = std::make_shared<TestGroupNode>(testGroupStats);
			node->children.swap(m_testCases);
			m_testGroups.push_back(node);
		}
		void testRunEnded(TestRunStats const& testRunStats) override {
			auto node = std::make_shared<TestRunNode>(testRunStats);
			node->children.swap(m_testGroups);
			m_testRuns.push_back(node);
			testRunEndedCumulative();
		}
		virtual void testRunEndedCumulative() = 0;

		void skipTest(TestCaseInfo const&) override {}

		IConfigPtr m_config;
		std::ostream& stream;
		std::vector<AssertionStats> m_assertions;
		std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
		std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
		std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;

		std::vector<std::shared_ptr<TestRunNode>> m_testRuns;

		std::shared_ptr<SectionNode> m_rootSection;
		std::shared_ptr<SectionNode> m_deepestSection;
		std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
		ReporterPreferences m_reporterPrefs;
	};

	template<char C>
	char const* getLineOfChars() {
		static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
		if( !*line ) {
			std::memset( line, C, CATCH_CONFIG_CONSOLE_WIDTH-1 );
			line[CATCH_CONFIG_CONSOLE_WIDTH-1] = 0;
		}
		return line;
	}

	struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
		TestEventListenerBase( ReporterConfig const& _config );

		static std::set<Verbosity> getSupportedVerbosities();

		void assertionStarting(AssertionInfo const&) override;
		bool assertionEnded(AssertionStats const&) override;
	};

} // end namespace Catch

  // end catch_reporter_bases.hpp
  // start catch_console_colour.h

namespace Catch {

	struct Colour {
		enum Code {
			None = 0,

			White,
			Red,
			Green,
			Blue,
			Cyan,
			Yellow,
			Grey,

			Bright = 0x10,

			BrightRed = Bright | Red,
			BrightGreen = Bright | Green,
			LightGrey = Bright | Grey,
			BrightWhite = Bright | White,
			BrightYellow = Bright | Yellow,

			// By intention
			FileName = LightGrey,
			Warning = BrightYellow,
			ResultError = BrightRed,
			ResultSuccess = BrightGreen,
			ResultExpectedFailure = Warning,

			Error = BrightRed,
			Success = Green,

			OriginalExpression = Cyan,
			ReconstructedExpression = BrightYellow,

			SecondaryText = LightGrey,
			Headers = White
		};

		// Use constructed object for RAII guard
		Colour( Code _colourCode );
		Colour( Colour&& other ) noexcept;
		Colour& operator=( Colour&& other ) noexcept;
		~Colour();

		// Use static method for one-shot changes
		static void use( Code _colourCode );

	private:
		bool m_moved = false;
	};

	std::ostream& operator << ( std::ostream& os, Colour const& );

} // end namespace Catch

  // end catch_console_colour.h
  // start catch_reporter_registrars.hpp


namespace Catch {

	template<typename T>
	class ReporterRegistrar {

		class ReporterFactory : public IReporterFactory {

			virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
				return std::unique_ptr<T>( new T( config ) );
			}

			virtual std::string getDescription() const override {
				return T::getDescription();
			}
		};

	public:

		explicit ReporterRegistrar( std::string const& name ) {
			getMutableRegistryHub().registerReporter( name, std::make_shared<ReporterFactory>() );
		}
	};

	template<typename T>
	class ListenerRegistrar {

		class ListenerFactory : public IReporterFactory {

			virtual IStreamingReporterPtr create( ReporterConfig const& config ) const override {
				return std::unique_ptr<T>( new T( config ) );
			}
			virtual std::string getDescription() const override {
				return std::string();
			}
		};

	public:

		ListenerRegistrar() {
			getMutableRegistryHub().registerListener( std::make_shared<ListenerFactory>() );
		}
	};
}

#if !defined(CATCH_CONFIG_DISABLE)

#define CATCH_REGISTER_REPORTER( name, reporterType ) \
    CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS          \
    namespace{ Catch::ReporterRegistrar<reporterType> catch_internal_RegistrarFor##reporterType( name ); } \
    CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

#define CATCH_REGISTER_LISTENER( listenerType ) \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS   \
     namespace{ Catch::ListenerRegistrar<listenerType> catch_internal_RegistrarFor##listenerType; } \
     CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#else // CATCH_CONFIG_DISABLE

#define CATCH_REGISTER_REPORTER(name, reporterType)
#define CATCH_REGISTER_LISTENER(listenerType)

#endif // CATCH_CONFIG_DISABLE

// end catch_reporter_registrars.hpp
// Allow users to base their work off existing reporters
// start catch_reporter_compact.h

namespace Catch {

	struct CompactReporter : StreamingReporterBase<CompactReporter> {

		using StreamingReporterBase::StreamingReporterBase;

		~CompactReporter() override;

		static std::string getDescription();

		ReporterPreferences getPreferences() const override;

		void noMatchingTestCases(std::string const& spec) override;

		void assertionStarting(AssertionInfo const&) override;

		bool assertionEnded(AssertionStats const& _assertionStats) override;

		void sectionEnded(SectionStats const& _sectionStats) override;

		void testRunEnded(TestRunStats const& _testRunStats) override;

	};

} // end namespace Catch

  // end catch_reporter_compact.h
  // start catch_reporter_console.h

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
  // Note that 4062 (not all labels are handled
  // and default is missing) is enabled
#endif

namespace Catch {
	// Fwd decls
	struct SummaryColumn;
	class TablePrinter;

	struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
		std::unique_ptr<TablePrinter> m_tablePrinter;

		ConsoleReporter(ReporterConfig const& config);
		~ConsoleReporter() override;
		static std::string getDescription();

		void noMatchingTestCases(std::string const& spec) override;

		void assertionStarting(AssertionInfo const&) override;

		bool assertionEnded(AssertionStats const& _assertionStats) override;

		void sectionStarting(SectionInfo const& _sectionInfo) override;
		void sectionEnded(SectionStats const& _sectionStats) override;

		void benchmarkStarting(BenchmarkInfo const& info) override;
		void benchmarkEnded(BenchmarkStats const& stats) override;

		void testCaseEnded(TestCaseStats const& _testCaseStats) override;
		void testGroupEnded(TestGroupStats const& _testGroupStats) override;
		void testRunEnded(TestRunStats const& _testRunStats) override;

	private:

		void lazyPrint();

		void lazyPrintWithoutClosingBenchmarkTable();
		void lazyPrintRunInfo();
		void lazyPrintGroupInfo();
		void printTestCaseAndSectionHeader();

		void printClosedHeader(std::string const& _name);
		void printOpenHeader(std::string const& _name);

		// if string has a : in first line will set indent to follow it on
		// subsequent lines
		void printHeaderString(std::string const& _string, std::size_t indent = 0);

		void printTotals(Totals const& totals);
		void printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row);

		void printTotalsDivider(Totals const& totals);
		void printSummaryDivider();

	private:
		bool m_headerPrinted = false;
	};

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

  // end catch_reporter_console.h
  // start catch_reporter_junit.h

  // start catch_xmlwriter.h

#include <vector>

namespace Catch {

	class XmlEncode {
	public:
		enum ForWhat { ForTextNodes, ForAttributes };

		XmlEncode( std::string const& str, ForWhat forWhat = ForTextNodes );

		void encodeTo( std::ostream& os ) const;

		friend std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode );

	private:
		std::string m_str;
		ForWhat m_forWhat;
	};

	class XmlWriter {
	public:

		class ScopedElement {
		public:
			ScopedElement( XmlWriter* writer );

			ScopedElement( ScopedElement&& other ) noexcept;
			ScopedElement& operator=( ScopedElement&& other ) noexcept;

			~ScopedElement();

			ScopedElement& writeText( std::string const& text, bool indent = true );

			template<typename T>
			ScopedElement& writeAttribute( std::string const& name, T const& attribute ) {
				m_writer->writeAttribute( name, attribute );
				return *this;
			}

		private:
			mutable XmlWriter* m_writer = nullptr;
		};

		XmlWriter( std::ostream& os = Catch::cout() );
		~XmlWriter();

		XmlWriter( XmlWriter const& ) = delete;
		XmlWriter& operator=( XmlWriter const& ) = delete;

		XmlWriter& startElement( std::string const& name );

		ScopedElement scopedElement( std::string const& name );

		XmlWriter& endElement();

		XmlWriter& writeAttribute( std::string const& name, std::string const& attribute );

		XmlWriter& writeAttribute( std::string const& name, bool attribute );

		template<typename T>
		XmlWriter& writeAttribute( std::string const& name, T const& attribute ) {
			ReusableStringStream rss;
			rss << attribute;
			return writeAttribute( name, rss.str() );
		}

		XmlWriter& writeText( std::string const& text, bool indent = true );

		XmlWriter& writeComment( std::string const& text );

		void writeStylesheetRef( std::string const& url );

		XmlWriter& writeBlankLine();

		void ensureTagClosed();

	private:

		void writeDeclaration();

		void newlineIfNecessary();

		bool m_tagIsOpen = false;
		bool m_needsNewline = false;
		std::vector<std::string> m_tags;
		std::string m_indent;
		std::ostream& m_os;
	};

}

// end catch_xmlwriter.h
namespace Catch {

	class JunitReporter : public CumulativeReporterBase<JunitReporter> {
	public:
		JunitReporter(ReporterConfig const& _config);

		~JunitReporter() override;

		static std::string getDescription();

		void noMatchingTestCases(std::string const& /*spec*/) override;

		void testRunStarting(TestRunInfo const& runInfo) override;

		void testGroupStarting(GroupInfo const& groupInfo) override;

		void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
		bool assertionEnded(AssertionStats const& assertionStats) override;

		void testCaseEnded(TestCaseStats const& testCaseStats) override;

		void testGroupEnded(TestGroupStats const& testGroupStats) override;

		void testRunEndedCumulative() override;

		void writeGroup(TestGroupNode const& groupNode, double suiteTime);

		void writeTestCase(TestCaseNode const& testCaseNode);

		void writeSection(std::string const& className,
			std::string const& rootName,
			SectionNode const& sectionNode);

		void writeAssertions(SectionNode const& sectionNode);
		void writeAssertion(AssertionStats const& stats);

		XmlWriter xml;
		Timer suiteTimer;
		std::string stdOutForSuite;
		std::string stdErrForSuite;
		unsigned int unexpectedExceptions = 0;
		bool m_okToFail = false;
	};

} // end namespace Catch

  // end catch_reporter_junit.h
  // start catch_reporter_xml.h

namespace Catch {
	class XmlReporter : public StreamingReporterBase<XmlReporter> {
	public:
		XmlReporter(ReporterConfig const& _config);

		~XmlReporter() override;

		static std::string getDescription();

		virtual std::string getStylesheetRef() const;

		void writeSourceInfo(SourceLineInfo const& sourceInfo);

	public: // StreamingReporterBase

		void noMatchingTestCases(std::string const& s) override;

		void testRunStarting(TestRunInfo const& testInfo) override;

		void testGroupStarting(GroupInfo const& groupInfo) override;

		void testCaseStarting(TestCaseInfo const& testInfo) override;

		void sectionStarting(SectionInfo const& sectionInfo) override;

		void assertionStarting(AssertionInfo const&) override;

		bool assertionEnded(AssertionStats const& assertionStats) override;

		void sectionEnded(SectionStats const& sectionStats) override;

		void testCaseEnded(TestCaseStats const& testCaseStats) override;

		void testGroupEnded(TestGroupStats const& testGroupStats) override;

		void testRunEnded(TestRunStats const& testRunStats) override;

	private:
		Timer m_testCaseTimer;
		XmlWriter m_xml;
		int m_sectionDepth = 0;
	};

} // end namespace Catch

  // end catch_reporter_xml.h

  // end catch_external_interfaces.h
#endif

#endif // ! CATCH_CONFIG_IMPL_ONLY

#ifdef CATCH_IMPL
  // start catch_impl.hpp

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#endif

  // Keep these here for external reporters
  // start catch_test_case_tracker.h

#include <string>
#include <vector>
#include <memory>

namespace Catch {
	namespace TestCaseTracking {

		struct NameAndLocation {
			std::string name;
			SourceLineInfo location;

			NameAndLocation( std::string const& _name, SourceLineInfo const& _location );
		};

		struct ITracker;

		using ITrackerPtr = std::shared_ptr<ITracker>;

		struct ITracker {
			virtual ~ITracker();

			// static queries
			virtual NameAndLocation const& nameAndLocation() const = 0;

			// dynamic queries
			virtual bool isComplete() const = 0; // Successfully completed or failed
			virtual bool isSuccessfullyCompleted() const = 0;
			virtual bool isOpen() const = 0; // Started but not complete
			virtual bool hasChildren() const = 0;

			virtual ITracker& parent() = 0;

			// actions
			virtual void close() = 0; // Successfully complete
			virtual void fail() = 0;
			virtual void markAsNeedingAnotherRun() = 0;

			virtual void addChild( ITrackerPtr const& child ) = 0;
			virtual ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) = 0;
			virtual void openChild() = 0;

			// Debug/ checking
			virtual bool isSectionTracker() const = 0;
			virtual bool isIndexTracker() const = 0;
		};

		class TrackerContext {

			enum RunState {
				NotStarted,
				Executing,
				CompletedCycle
			};

			ITrackerPtr m_rootTracker;
			ITracker* m_currentTracker = nullptr;
			RunState m_runState = NotStarted;

		public:

			static TrackerContext& instance();

			ITracker& startRun();
			void endRun();

			void startCycle();
			void completeCycle();

			bool completedCycle() const;
			ITracker& currentTracker();
			void setCurrentTracker( ITracker* tracker );
		};

		class TrackerBase : public ITracker {
		protected:
			enum CycleState {
				NotStarted,
				Executing,
				ExecutingChildren,
				NeedsAnotherRun,
				CompletedSuccessfully,
				Failed
			};

			using Children = std::vector<ITrackerPtr>;
			NameAndLocation m_nameAndLocation;
			TrackerContext& m_ctx;
			ITracker* m_parent;
			Children m_children;
			CycleState m_runState = NotStarted;

		public:
			TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );

			NameAndLocation const& nameAndLocation() const override;
			bool isComplete() const override;
			bool isSuccessfullyCompleted() const override;
			bool isOpen() const override;
			bool hasChildren() const override;

			void addChild( ITrackerPtr const& child ) override;

			ITrackerPtr findChild( NameAndLocation const& nameAndLocation ) override;
			ITracker& parent() override;

			void openChild() override;

			bool isSectionTracker() const override;
			bool isIndexTracker() const override;

			void open();

			void close() override;
			void fail() override;
			void markAsNeedingAnotherRun() override;

		private:
			void moveToParent();
			void moveToThis();
		};

		class SectionTracker : public TrackerBase {
			std::vector<std::string> m_filters;
		public:
			SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent );

			bool isSectionTracker() const override;

			static SectionTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation );

			void tryOpen();

			void addInitialFilters( std::vector<std::string> const& filters );
			void addNextFilters( std::vector<std::string> const& filters );
		};

		class IndexTracker : public TrackerBase {
			int m_size;
			int m_index = -1;
		public:
			IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size );

			bool isIndexTracker() const override;
			void close() override;

			static IndexTracker& acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size );

			int index() const;

			void moveNext();
		};

	} // namespace TestCaseTracking

	using TestCaseTracking::ITracker;
	using TestCaseTracking::TrackerContext;
	using TestCaseTracking::SectionTracker;
	using TestCaseTracking::IndexTracker;

} // namespace Catch

  // end catch_test_case_tracker.h

  // start catch_leak_detector.h

namespace Catch {

	struct LeakDetector {
		LeakDetector();
		~LeakDetector();
	};

}
// end catch_leak_detector.h
// Cpp files will be included in the single-header file here
// start catch_approx.cpp

#include <cmath>
#include <limits>

namespace {

	// Performs equivalent check of std::fabs(lhs - rhs) <= margin
	// But without the subtraction to allow for INFINITY in comparison
	bool marginComparison(double lhs, double rhs, double margin) {
		return (lhs + margin >= rhs) && (rhs + margin >= lhs);
	}

}

namespace Catch {
	namespace Detail {

		Approx::Approx ( double value )
			:   m_epsilon( std::numeric_limits<float>::epsilon()*100 ),
			m_margin( 0.0 ),
			m_scale( 0.0 ),
			m_value( value )
		{}

		Approx Approx::custom() {
			return Approx( 0 );
		}

		Approx Approx::operator-() const {
			auto temp(*this);
			temp.m_value = -temp.m_value;
			return temp;
		}

		std::string Approx::toString() const {
			ReusableStringStream rss;
			rss << "Approx( " << ::Catch::Detail::stringify( m_value ) << " )";
			return rss.str();
		}

		bool Approx::equalityComparisonImpl(const double other) const {
			// First try with fixed margin, then compute margin based on epsilon, scale and Approx's value
			// Thanks to Richard Harris for his help refining the scaled margin value
			return marginComparison(m_value, other, m_margin) || marginComparison(m_value, other, m_epsilon * (m_scale + std::fabs(m_value)));
		}

		void Approx::setMargin(double margin) {
			CATCH_ENFORCE(margin >= 0,
				"Invalid Approx::margin: " << margin << '.'
				<< " Approx::Margin has to be non-negative.");
			m_margin = margin;
		}

		void Approx::setEpsilon(double epsilon) {
			CATCH_ENFORCE(epsilon >= 0 && epsilon <= 1.0,
				"Invalid Approx::epsilon: " << epsilon << '.'
				<< " Approx::epsilon has to be in [0, 1]");
			m_epsilon = epsilon;
		}

	} // end namespace Detail

	namespace literals {
		Detail::Approx operator "" _a(long double val) {
			return Detail::Approx(val);
		}
		Detail::Approx operator "" _a(unsigned long long val) {
			return Detail::Approx(val);
		}
	} // end namespace literals

	std::string StringMaker<Catch::Detail::Approx>::convert(Catch::Detail::Approx const& value) {
		return value.toString();
	}

} // end namespace Catch
  // end catch_approx.cpp
  // start catch_assertionhandler.cpp

  // start catch_context.h

#include <memory>

namespace Catch {

	struct IResultCapture;
	struct IRunner;
	struct IConfig;
	struct IMutableContext;

	using IConfigPtr = std::shared_ptr<IConfig const>;

	struct IContext
	{
		virtual ~IContext();

		virtual IResultCapture* getResultCapture() = 0;
		virtual IRunner* getRunner() = 0;
		virtual IConfigPtr const& getConfig() const = 0;
	};

	struct IMutableContext : IContext
	{
		virtual ~IMutableContext();
		virtual void setResultCapture( IResultCapture* resultCapture ) = 0;
		virtual void setRunner( IRunner* runner ) = 0;
		virtual void setConfig( IConfigPtr const& config ) = 0;

	private:
		static IMutableContext *currentContext;
		friend IMutableContext& getCurrentMutableContext();
		friend void cleanUpContext();
		static void createContext();
	};

	inline IMutableContext& getCurrentMutableContext()
	{
		if( !IMutableContext::currentContext )
			IMutableContext::createContext();
		return *IMutableContext::currentContext;
	}

	inline IContext& getCurrentContext()
	{
		return getCurrentMutableContext();
	}

	void cleanUpContext();
}

// end catch_context.h
// start catch_debugger.h

namespace Catch {
	bool isDebuggerActive();
}

#ifdef CATCH_PLATFORM_MAC

#define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */

#elif defined(CATCH_PLATFORM_LINUX)
// If we can use inline assembler, do it because this allows us to break
// directly at the location of the failing check instead of breaking inside
// raise() called from it, i.e. one stack frame below.
#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
#define CATCH_TRAP() asm volatile ("int $3") /* NOLINT */
#else // Fall back to the generic way.
#include <signal.h>

#define CATCH_TRAP() raise(SIGTRAP)
#endif
#elif defined(_MSC_VER)
#define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) void __stdcall DebugBreak();
#define CATCH_TRAP() DebugBreak()
#endif

#ifdef CATCH_TRAP
#define CATCH_BREAK_INTO_DEBUGGER() if( Catch::isDebuggerActive() ) { CATCH_TRAP(); }
#else
namespace Catch {
	inline void doNothing() {}
}
#define CATCH_BREAK_INTO_DEBUGGER() Catch::doNothing()
#endif

// end catch_debugger.h
// start catch_run_context.h

// start catch_fatal_condition.h

// start catch_windows_h_proxy.h


#if defined(CATCH_PLATFORM_WINDOWS)

#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
#  define CATCH_DEFINED_NOMINMAX
#  define NOMINMAX
#endif
#if !defined(WIN32_LEAN_AND_MEAN) && !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
#  define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#  define WIN32_LEAN_AND_MEAN
#endif

#ifdef __AFXDLL
#include <AfxWin.h>
#else
#include <windows.h>
#endif

#ifdef CATCH_DEFINED_NOMINMAX
#  undef NOMINMAX
#endif
#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#  undef WIN32_LEAN_AND_MEAN
#endif

#endif // defined(CATCH_PLATFORM_WINDOWS)

// end catch_windows_h_proxy.h
#if defined( CATCH_CONFIG_WINDOWS_SEH )

namespace Catch {

	struct FatalConditionHandler {

		static LONG CALLBACK handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
		FatalConditionHandler();
		static void reset();
		~FatalConditionHandler();

	private:
		static bool isSet;
		static ULONG guaranteeSize;
		static PVOID exceptionHandlerHandle;
	};

} // namespace Catch

#elif defined ( CATCH_CONFIG_POSIX_SIGNALS )

#include <signal.h>

namespace Catch {

	struct FatalConditionHandler {

		static bool isSet;
		static struct sigaction oldSigActions[];
		static stack_t oldSigStack;
		static char altStackMem[];

		static void handleSignal( int sig );

		FatalConditionHandler();
		~FatalConditionHandler();
		static void reset();
	};

} // namespace Catch

#else

namespace Catch {
	struct FatalConditionHandler {
		void reset();
	};
}

#endif

// end catch_fatal_condition.h
#include <string>

namespace Catch {

	struct IMutableContext;

	///////////////////////////////////////////////////////////////////////////

	class RunContext : public IResultCapture, public IRunner {

	public:
		RunContext( RunContext const& ) = delete;
		RunContext& operator =( RunContext const& ) = delete;

		explicit RunContext( IConfigPtr const& _config, IStreamingReporterPtr&& reporter );

		~RunContext() override;

		void testGroupStarting( std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount );
		void testGroupEnded( std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount );

		Totals runTest(TestCase const& testCase);

		IConfigPtr config() const;
		IStreamingReporter& reporter() const;

	public: // IResultCapture

			// Assertion handlers
		void handleExpr
		(   AssertionInfo const& info,
			ITransientExpression const& expr,
			AssertionReaction& reaction ) override;
		void handleMessage
		(   AssertionInfo const& info,
			ResultWas::OfType resultType,
			StringRef const& message,
			AssertionReaction& reaction ) override;
		void handleUnexpectedExceptionNotThrown
		(   AssertionInfo const& info,
			AssertionReaction& reaction ) override;
		void handleUnexpectedInflightException
		(   AssertionInfo const& info,
			std::string const& message,
			AssertionReaction& reaction ) override;
		void handleIncomplete
		(   AssertionInfo const& info ) override;
		void handleNonExpr
		(   AssertionInfo const &info,
			ResultWas::OfType resultType,
			AssertionReaction &reaction ) override;

		bool sectionStarted( SectionInfo const& sectionInfo, Counts& assertions ) override;

		void sectionEnded( SectionEndInfo const& endInfo ) override;
		void sectionEndedEarly( SectionEndInfo const& endInfo ) override;

		auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& override;

		void benchmarkStarting( BenchmarkInfo const& info ) override;
		void benchmarkEnded( BenchmarkStats const& stats ) override;

		void pushScopedMessage( MessageInfo const& message ) override;
		void popScopedMessage( MessageInfo const& message ) override;

		std::string getCurrentTestName() const override;

		const AssertionResult* getLastResult() const override;

		void exceptionEarlyReported() override;

		void handleFatalErrorCondition( StringRef message ) override;

		bool lastAssertionPassed() override;

		void assertionPassed() override;

	public:
		// !TBD We need to do this another way!
		bool aborting() const final;

	private:

		void runCurrentTest( std::string& redirectedCout, std::string& redirectedCerr );
		void invokeActiveTestCase();

		void resetAssertionInfo();
		bool testForMissingAssertions( Counts& assertions );

		void assertionEnded( AssertionResult const& result );
		void reportExpr
		(   AssertionInfo const &info,
			ResultWas::OfType resultType,
			ITransientExpression const *expr,
			bool negated );

		void populateReaction( AssertionReaction& reaction );

	private:

		void handleUnfinishedSections();

		TestRunInfo m_runInfo;
		IMutableContext& m_context;
		TestCase const* m_activeTestCase = nullptr;
		ITracker* m_testCaseTracker;
		Option<AssertionResult> m_lastResult;

		IConfigPtr m_config;
		Totals m_totals;
		IStreamingReporterPtr m_reporter;
		std::vector<MessageInfo> m_messages;
		AssertionInfo m_lastAssertionInfo;
		std::vector<SectionEndInfo> m_unfinishedSections;
		std::vector<ITracker*> m_activeSections;
		TrackerContext m_trackerContext;
		bool m_lastAssertionPassed = false;
		bool m_shouldReportUnexpected = true;
		bool m_includeSuccessfulResults;
	};

} // end namespace Catch

  // end catch_run_context.h
namespace Catch {

	namespace {
		auto operator <<( std::ostream& os, ITransientExpression const& expr ) -> std::ostream& {
			expr.streamReconstructedExpression( os );
			return os;
		}
	}

	LazyExpression::LazyExpression( bool isNegated )
		:   m_isNegated( isNegated )
	{}

	LazyExpression::LazyExpression( LazyExpression const& other ) : m_isNegated( other.m_isNegated ) {}

	LazyExpression::operator bool() const {
		return m_transientExpression != nullptr;
	}

	auto operator << ( std::ostream& os, LazyExpression const& lazyExpr ) -> std::ostream& {
		if( lazyExpr.m_isNegated )
			os << "!";

		if( lazyExpr ) {
			if( lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression() )
				os << "(" << *lazyExpr.m_transientExpression << ")";
			else
				os << *lazyExpr.m_transientExpression;
		}
		else {
			os << "{** error - unchecked empty expression requested **}";
		}
		return os;
	}

	AssertionHandler::AssertionHandler
	(   StringRef const& macroName,
		SourceLineInfo const& lineInfo,
		StringRef capturedExpression,
		ResultDisposition::Flags resultDisposition )
		:   m_assertionInfo{ macroName, lineInfo, capturedExpression, resultDisposition },
		m_resultCapture( getResultCapture() )
	{}

	void AssertionHandler::handleExpr( ITransientExpression const& expr ) {
		m_resultCapture.handleExpr( m_assertionInfo, expr, m_reaction );
	}
	void AssertionHandler::handleMessage(ResultWas::OfType resultType, StringRef const& message) {
		m_resultCapture.handleMessage( m_assertionInfo, resultType, message, m_reaction );
	}

	auto AssertionHandler::allowThrows() const -> bool {
		return getCurrentContext().getConfig()->allowThrows();
	}

	void AssertionHandler::complete() {
		setCompleted();
		if( m_reaction.shouldDebugBreak ) {

			// If you find your debugger stopping you here then go one level up on the
			// call-stack for the code that caused it (typically a failed assertion)

			// (To go back to the test and change execution, jump over the throw, next)
			CATCH_BREAK_INTO_DEBUGGER();
		}
		if (m_reaction.shouldThrow) {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
			throw Catch::TestFailureException();
#else
			CATCH_ERROR( "Test failure requires aborting test!" );
#endif
		}
	}
	void AssertionHandler::setCompleted() {
		m_completed = true;
	}

	void AssertionHandler::handleUnexpectedInflightException() {
		m_resultCapture.handleUnexpectedInflightException( m_assertionInfo, Catch::translateActiveException(), m_reaction );
	}

	void AssertionHandler::handleExceptionThrownAsExpected() {
		m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
	}
	void AssertionHandler::handleExceptionNotThrownAsExpected() {
		m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
	}

	void AssertionHandler::handleUnexpectedExceptionNotThrown() {
		m_resultCapture.handleUnexpectedExceptionNotThrown( m_assertionInfo, m_reaction );
	}

	void AssertionHandler::handleThrowingCallSkipped() {
		m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
	}

	// This is the overload that takes a string and infers the Equals matcher from it
	// The more general overload, that takes any string matcher, is in catch_capture_matchers.cpp
	void handleExceptionMatchExpr( AssertionHandler& handler, std::string const& str, StringRef const& matcherString  ) {
		handleExceptionMatchExpr( handler, Matchers::Equals( str ), matcherString );
	}

} // namespace Catch
  // end catch_assertionhandler.cpp
  // start catch_assertionresult.cpp

namespace Catch {
	AssertionResultData::AssertionResultData(ResultWas::OfType _resultType, LazyExpression const & _lazyExpression):
		lazyExpression(_lazyExpression),
		resultType(_resultType) {}

	std::string AssertionResultData::reconstructExpression() const {

		if( reconstructedExpression.empty() ) {
			if( lazyExpression ) {
				ReusableStringStream rss;
				rss << lazyExpression;
				reconstructedExpression = rss.str();
			}
		}
		return reconstructedExpression;
	}

	AssertionResult::AssertionResult( AssertionInfo const& info, AssertionResultData const& data )
		:   m_info( info ),
		m_resultData( data )
	{}

	// Result was a success
	bool AssertionResult::succeeded() const {
		return Catch::isOk( m_resultData.resultType );
	}

	// Result was a success, or failure is suppressed
	bool AssertionResult::isOk() const {
		return Catch::isOk( m_resultData.resultType ) || shouldSuppressFailure( m_info.resultDisposition );
	}

	ResultWas::OfType AssertionResult::getResultType() const {
		return m_resultData.resultType;
	}

	bool AssertionResult::hasExpression() const {
		return m_info.capturedExpression[0] != 0;
	}

	bool AssertionResult::hasMessage() const {
		return !m_resultData.message.empty();
	}

	std::string AssertionResult::getExpression() const {
		if( isFalseTest( m_info.resultDisposition ) )
			return "!(" + m_info.capturedExpression + ")";
		else
			return m_info.capturedExpression;
	}

	std::string AssertionResult::getExpressionInMacro() const {
		std::string expr;
		if( m_info.macroName[0] == 0 )
			expr = m_info.capturedExpression;
		else {
			expr.reserve( m_info.macroName.size() + m_info.capturedExpression.size() + 4 );
			expr += m_info.macroName;
			expr += "( ";
			expr += m_info.capturedExpression;
			expr += " )";
		}
		return expr;
	}

	bool AssertionResult::hasExpandedExpression() const {
		return hasExpression() && getExpandedExpression() != getExpression();
	}

	std::string AssertionResult::getExpandedExpression() const {
		std::string expr = m_resultData.reconstructExpression();
		return expr.empty()
			? getExpression()
			: expr;
	}

	std::string AssertionResult::getMessage() const {
		return m_resultData.message;
	}
	SourceLineInfo AssertionResult::getSourceInfo() const {
		return m_info.lineInfo;
	}

	StringRef AssertionResult::getTestMacroName() const {
		return m_info.macroName;
	}

} // end namespace Catch
  // end catch_assertionresult.cpp
  // start catch_benchmark.cpp

namespace Catch {

	auto BenchmarkLooper::getResolution() -> uint64_t {
		return getEstimatedClockResolution() * getCurrentContext().getConfig()->benchmarkResolutionMultiple();
	}

	void BenchmarkLooper::reportStart() {
		getResultCapture().benchmarkStarting( { m_name } );
	}
	auto BenchmarkLooper::needsMoreIterations() -> bool {
		auto elapsed = m_timer.getElapsedNanoseconds();

		// Exponentially increasing iterations until we're confident in our timer resolution
		if( elapsed < m_resolution ) {
			m_iterationsToRun *= 10;
			return true;
		}

		getResultCapture().benchmarkEnded( { { m_name }, m_count, elapsed } );
		return false;
	}

} // end namespace Catch
  // end catch_benchmark.cpp
  // start catch_capture_matchers.cpp

namespace Catch {

	using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

	// This is the general overload that takes a any string matcher
	// There is another overload, in catch_assertionhandler.h/.cpp, that only takes a string and infers
	// the Equals matcher (so the header does not mention matchers)
	void handleExceptionMatchExpr( AssertionHandler& handler, StringMatcher const& matcher, StringRef const& matcherString  ) {
		std::string exceptionMessage = Catch::translateActiveException();
		MatchExpr<std::string, StringMatcher const&> expr( exceptionMessage, matcher, matcherString );
		handler.handleExpr( expr );
	}

} // namespace Catch
  // end catch_capture_matchers.cpp
  // start catch_commandline.cpp

  // start catch_commandline.h

  // start catch_clara.h

  // Use Catch's value for console width (store Clara's off to the side, if present)
#ifdef CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#endif
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH-1

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wshadow"
#endif

  // start clara.hpp
  // Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  // See https://github.com/philsquared/Clara for more details

  // Clara v1.1.5


#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
#endif

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#endif

#ifndef CLARA_CONFIG_OPTIONAL_TYPE
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L
#include <optional>
#define CLARA_CONFIG_OPTIONAL_TYPE std::optional
#endif
#endif
#endif

  // ----------- #included from clara_textflow.hpp -----------

  // TextFlowCpp
  //
  // A single-header library for wrapping and laying out basic text, by Phil Nash
  //
  // Distributed under the Boost Software License, Version 1.0. (See accompanying
  // file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  //
  // This project is hosted at https://github.com/philsquared/textflowcpp


#include <cassert>
#include <ostream>
#include <sstream>
#include <vector>

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {
	namespace clara {
		namespace TextFlow {

			inline auto isWhitespace(char c) -> bool {
				static std::string chars = " \t\n\r";
				return chars.find(c) != std::string::npos;
			}
			inline auto isBreakableBefore(char c) -> bool {
				static std::string chars = "[({<|";
				return chars.find(c) != std::string::npos;
			}
			inline auto isBreakableAfter(char c) -> bool {
				static std::string chars = "])}>.,:;*+-=&/\\";
				return chars.find(c) != std::string::npos;
			}

			class Columns;

			class Column {
				std::vector<std::string> m_strings;
				size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
				size_t m_indent = 0;
				size_t m_initialIndent = std::string::npos;

			public:
				class iterator {
					friend Column;

					Column const& m_column;
					size_t m_stringIndex = 0;
					size_t m_pos = 0;

					size_t m_len = 0;
					size_t m_end = 0;
					bool m_suffix = false;

					iterator(Column const& column, size_t stringIndex)
						: m_column(column),
						m_stringIndex(stringIndex) {}

					auto line() const -> std::string const& { return m_column.m_strings[m_stringIndex]; }

					auto isBoundary(size_t at) const -> bool {
						assert(at > 0);
						assert(at <= line().size());

						return at == line().size() ||
							(isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
							isBreakableBefore(line()[at]) ||
							isBreakableAfter(line()[at - 1]);
					}

					void calcLength() {
						assert(m_stringIndex < m_column.m_strings.size());

						m_suffix = false;
						auto width = m_column.m_width - indent();
						m_end = m_pos;
						while (m_end < line().size() && line()[m_end] != '\n')
							++m_end;

						if (m_end < m_pos + width) {
							m_len = m_end - m_pos;
						} else {
							size_t len = width;
							while (len > 0 && !isBoundary(m_pos + len))
								--len;
							while (len > 0 && isWhitespace(line()[m_pos + len - 1]))
								--len;

							if (len > 0) {
								m_len = len;
							} else {
								m_suffix = true;
								m_len = width - 1;
							}
						}
					}

					auto indent() const -> size_t {
						auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent : std::string::npos;
						return initial == std::string::npos ? m_column.m_indent : initial;
					}

					auto addIndentAndSuffix(std::string const &plain) const -> std::string {
						return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
					}

				public:
					using difference_type = std::ptrdiff_t;
					using value_type = std::string;
					using pointer = value_type * ;
					using reference = value_type & ;
					using iterator_category = std::forward_iterator_tag;

					explicit iterator(Column const& column) : m_column(column) {
						assert(m_column.m_width > m_column.m_indent);
						assert(m_column.m_initialIndent == std::string::npos || m_column.m_width > m_column.m_initialIndent);
						calcLength();
						if (m_len == 0)
							m_stringIndex++; // Empty string
					}

					auto operator *() const -> std::string {
						assert(m_stringIndex < m_column.m_strings.size());
						assert(m_pos <= m_end);
						return addIndentAndSuffix(line().substr(m_pos, m_len));
					}

					auto operator ++() -> iterator& {
						m_pos += m_len;
						if (m_pos < line().size() && line()[m_pos] == '\n')
							m_pos += 1;
						else
							while (m_pos < line().size() && isWhitespace(line()[m_pos]))
								++m_pos;

						if (m_pos == line().size()) {
							m_pos = 0;
							++m_stringIndex;
						}
						if (m_stringIndex < m_column.m_strings.size())
							calcLength();
						return *this;
					}
					auto operator ++(int) -> iterator {
						iterator prev(*this);
						operator++();
						return prev;
					}

					auto operator ==(iterator const& other) const -> bool {
						return
							m_pos == other.m_pos &&
							m_stringIndex == other.m_stringIndex &&
							&m_column == &other.m_column;
					}
					auto operator !=(iterator const& other) const -> bool {
						return !operator==(other);
					}
				};
				using const_iterator = iterator;

				explicit Column(std::string const& text) { m_strings.push_back(text); }

				auto width(size_t newWidth) -> Column& {
					assert(newWidth > 0);
					m_width = newWidth;
					return *this;
				}
				auto indent(size_t newIndent) -> Column& {
					m_indent = newIndent;
					return *this;
				}
				auto initialIndent(size_t newIndent) -> Column& {
					m_initialIndent = newIndent;
					return *this;
				}

				auto width() const -> size_t { return m_width; }
				auto begin() const -> iterator { return iterator(*this); }
				auto end() const -> iterator { return { *this, m_strings.size() }; }

				inline friend std::ostream& operator << (std::ostream& os, Column const& col) {
					bool first = true;
					for (auto line : col) {
						if (first)
							first = false;
						else
							os << "\n";
						os << line;
					}
					return os;
				}

				auto operator + (Column const& other)->Columns;

				auto toString() const -> std::string {
					std::ostringstream oss;
					oss << *this;
					return oss.str();
				}
			};

			class Spacer : public Column {

			public:
				explicit Spacer(size_t spaceWidth) : Column("") {
					width(spaceWidth);
				}
			};

			class Columns {
				std::vector<Column> m_columns;

			public:

				class iterator {
					friend Columns;
					struct EndTag {};

					std::vector<Column> const& m_columns;
					std::vector<Column::iterator> m_iterators;
					size_t m_activeIterators;

					iterator(Columns const& columns, EndTag)
						: m_columns(columns.m_columns),
						m_activeIterators(0) {
						m_iterators.reserve(m_columns.size());

						for (auto const& col : m_columns)
							m_iterators.push_back(col.end());
					}

				public:
					using difference_type = std::ptrdiff_t;
					using value_type = std::string;
					using pointer = value_type * ;
					using reference = value_type & ;
					using iterator_category = std::forward_iterator_tag;

					explicit iterator(Columns const& columns)
						: m_columns(columns.m_columns),
						m_activeIterators(m_columns.size()) {
						m_iterators.reserve(m_columns.size());

						for (auto const& col : m_columns)
							m_iterators.push_back(col.begin());
					}

					auto operator ==(iterator const& other) const -> bool {
						return m_iterators == other.m_iterators;
					}
					auto operator !=(iterator const& other) const -> bool {
						return m_iterators != other.m_iterators;
					}
					auto operator *() const -> std::string {
						std::string row, padding;

						for (size_t i = 0; i < m_columns.size(); ++i) {
							auto width = m_columns[i].width();
							if (m_iterators[i] != m_columns[i].end()) {
								std::string col = *m_iterators[i];
								row += padding + col;
								if (col.size() < width)
									padding = std::string(width - col.size(), ' ');
								else
									padding = "";
							} else {
								padding += std::string(width, ' ');
							}
						}
						return row;
					}
					auto operator ++() -> iterator& {
						for (size_t i = 0; i < m_columns.size(); ++i) {
							if (m_iterators[i] != m_columns[i].end())
								++m_iterators[i];
						}
						return *this;
					}
					auto operator ++(int) -> iterator {
						iterator prev(*this);
						operator++();
						return prev;
					}
				};
				using const_iterator = iterator;

				auto begin() const -> iterator { return iterator(*this); }
				auto end() const -> iterator { return { *this, iterator::EndTag() }; }

				auto operator += (Column const& col) -> Columns& {
					m_columns.push_back(col);
					return *this;
				}
				auto operator + (Column const& col) -> Columns {
					Columns combined = *this;
					combined += col;
					return combined;
				}

				inline friend std::ostream& operator << (std::ostream& os, Columns const& cols) {

					bool first = true;
					for (auto line : cols) {
						if (first)
							first = false;
						else
							os << "\n";
						os << line;
					}
					return os;
				}

				auto toString() const -> std::string {
					std::ostringstream oss;
					oss << *this;
					return oss.str();
				}
			};

			inline auto Column::operator + (Column const& other) -> Columns {
				Columns cols;
				cols += *this;
				cols += other;
				return cols;
			}
		}

	}
}

// ----------- end of #include from clara_textflow.hpp -----------
// ........... back in clara.hpp

#include <string>
#include <memory>
#include <set>
#include <algorithm>

#if !defined(CATCH_PLATFORM_WINDOWS) && ( defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || defined(_MSC_VER) )
#define CATCH_PLATFORM_WINDOWS
#endif

namespace Catch { namespace clara {
	namespace detail {

		// Traits for extracting arg and return type of lambdas (for single argument lambdas)
		template<typename L>
		struct UnaryLambdaTraits : UnaryLambdaTraits<decltype( &L::operator() )> {};

		template<typename ClassT, typename ReturnT, typename... Args>
		struct UnaryLambdaTraits<ReturnT( ClassT::* )( Args... ) const> {
			static const bool isValid = false;
		};

		template<typename ClassT, typename ReturnT, typename ArgT>
		struct UnaryLambdaTraits<ReturnT( ClassT::* )( ArgT ) const> {
			static const bool isValid = true;
			using ArgType = typename std::remove_const<typename std::remove_reference<ArgT>::type>::type;
			using ReturnType = ReturnT;
		};

		class TokenStream;

		// Transport for raw args (copied from main args, or supplied via init list for testing)
		class Args {
			friend TokenStream;
			std::string m_exeName;
			std::vector<std::string> m_args;

		public:
			Args( int argc, char const* const* argv )
				: m_exeName(argv[0]),
				m_args(argv + 1, argv + argc) {}

			Args( std::initializer_list<std::string> args )
				:   m_exeName( *args.begin() ),
				m_args( args.begin()+1, args.end() )
			{}

			auto exeName() const -> std::string {
				return m_exeName;
			}
		};

		// Wraps a token coming from a token stream. These may not directly correspond to strings as a single string
		// may encode an option + its argument if the : or = form is used
		enum class TokenType {
			Option, Argument
		};
		struct Token {
			TokenType type;
			std::string token;
		};

		inline auto isOptPrefix( char c ) -> bool {
			return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
				|| c == '/'
#endif
				;
		}

		// Abstracts iterators into args as a stream of tokens, with option arguments uniformly handled
		class TokenStream {
			using Iterator = std::vector<std::string>::const_iterator;
			Iterator it;
			Iterator itEnd;
			std::vector<Token> m_tokenBuffer;

			void loadBuffer() {
				m_tokenBuffer.resize( 0 );

				// Skip any empty strings
				while( it != itEnd && it->empty() )
					++it;

				if( it != itEnd ) {
					auto const &next = *it;
					if( isOptPrefix( next[0] ) ) {
						auto delimiterPos = next.find_first_of( " :=" );
						if( delimiterPos != std::string::npos ) {
							m_tokenBuffer.push_back( { TokenType::Option, next.substr( 0, delimiterPos ) } );
							m_tokenBuffer.push_back( { TokenType::Argument, next.substr( delimiterPos + 1 ) } );
						} else {
							if( next[1] != '-' && next.size() > 2 ) {
								std::string opt = "- ";
								for( size_t i = 1; i < next.size(); ++i ) {
									opt[1] = next[i];
									m_tokenBuffer.push_back( { TokenType::Option, opt } );
								}
							} else {
								m_tokenBuffer.push_back( { TokenType::Option, next } );
							}
						}
					} else {
						m_tokenBuffer.push_back( { TokenType::Argument, next } );
					}
				}
			}

		public:
			explicit TokenStream( Args const &args ) : TokenStream( args.m_args.begin(), args.m_args.end() ) {}

			TokenStream( Iterator it, Iterator itEnd ) : it( it ), itEnd( itEnd ) {
				loadBuffer();
			}

			explicit operator bool() const {
				return !m_tokenBuffer.empty() || it != itEnd;
			}

			auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }

			auto operator*() const -> Token {
				assert( !m_tokenBuffer.empty() );
				return m_tokenBuffer.front();
			}

			auto operator->() const -> Token const * {
				assert( !m_tokenBuffer.empty() );
				return &m_tokenBuffer.front();
			}

			auto operator++() -> TokenStream & {
				if( m_tokenBuffer.size() >= 2 ) {
					m_tokenBuffer.erase( m_tokenBuffer.begin() );
				} else {
					if( it != itEnd )
						++it;
					loadBuffer();
				}
				return *this;
			}
		};

		class ResultBase {
		public:
			enum Type {
				Ok, LogicError, RuntimeError
			};

		protected:
			ResultBase( Type type ) : m_type( type ) {}
			virtual ~ResultBase() = default;

			virtual void enforceOk() const = 0;

			Type m_type;
		};

		template<typename T>
		class ResultValueBase : public ResultBase {
		public:
			auto value() const -> T const & {
				enforceOk();
				return m_value;
			}

		protected:
			ResultValueBase( Type type ) : ResultBase( type ) {}

			ResultValueBase( ResultValueBase const &other ) : ResultBase( other ) {
				if( m_type == ResultBase::Ok )
					new( &m_value ) T( other.m_value );
			}

			ResultValueBase( Type, T const &value ) : ResultBase( Ok ) {
				new( &m_value ) T( value );
			}

			auto operator=( ResultValueBase const &other ) -> ResultValueBase & {
				if( m_type == ResultBase::Ok )
					m_value.~T();
				ResultBase::operator=(other);
				if( m_type == ResultBase::Ok )
					new( &m_value ) T( other.m_value );
				return *this;
			}

			~ResultValueBase() override {
				if( m_type == Ok )
					m_value.~T();
			}

			union {
				T m_value;
			};
		};

		template<>
		class ResultValueBase<void> : public ResultBase {
		protected:
			using ResultBase::ResultBase;
		};

		template<typename T = void>
		class BasicResult : public ResultValueBase<T> {
		public:
			template<typename U>
			explicit BasicResult( BasicResult<U> const &other )
				:   ResultValueBase<T>( other.type() ),
				m_errorMessage( other.errorMessage() )
			{
				assert( type() != ResultBase::Ok );
			}

			template<typename U>
			static auto ok( U const &value ) -> BasicResult { return { ResultBase::Ok, value }; }
			static auto ok() -> BasicResult { return { ResultBase::Ok }; }
			static auto logicError( std::string const &message ) -> BasicResult { return { ResultBase::LogicError, message }; }
			static auto runtimeError( std::string const &message ) -> BasicResult { return { ResultBase::RuntimeError, message }; }

			explicit operator bool() const { return m_type == ResultBase::Ok; }
			auto type() const -> ResultBase::Type { return m_type; }
			auto errorMessage() const -> std::string { return m_errorMessage; }

		protected:
			void enforceOk() const override {

				// Errors shouldn't reach this point, but if they do
				// the actual error message will be in m_errorMessage
				assert( m_type != ResultBase::LogicError );
				assert( m_type != ResultBase::RuntimeError );
				if( m_type != ResultBase::Ok )
					std::abort();
			}

			std::string m_errorMessage; // Only populated if resultType is an error

			BasicResult( ResultBase::Type type, std::string const &message )
				:   ResultValueBase<T>(type),
				m_errorMessage(message)
			{
				assert( m_type != ResultBase::Ok );
			}

			using ResultValueBase<T>::ResultValueBase;
			using ResultBase::m_type;
		};

		enum class ParseResultType {
			Matched, NoMatch, ShortCircuitAll, ShortCircuitSame
		};

		class ParseState {
		public:

			ParseState( ParseResultType type, TokenStream const &remainingTokens )
				: m_type(type),
				m_remainingTokens( remainingTokens )
			{}

			auto type() const -> ParseResultType { return m_type; }
			auto remainingTokens() const -> TokenStream { return m_remainingTokens; }

		private:
			ParseResultType m_type;
			TokenStream m_remainingTokens;
		};

		using Result = BasicResult<void>;
		using ParserResult = BasicResult<ParseResultType>;
		using InternalParseResult = BasicResult<ParseState>;

		struct HelpColumns {
			std::string left;
			std::string right;
		};

		template<typename T>
		inline auto convertInto( std::string const &source, T& target ) -> ParserResult {
			std::stringstream ss;
			ss << source;
			ss >> target;
			if( ss.fail() )
				return ParserResult::runtimeError( "Unable to convert '" + source + "' to destination type" );
			else
				return ParserResult::ok( ParseResultType::Matched );
		}
		inline auto convertInto( std::string const &source, std::string& target ) -> ParserResult {
			target = source;
			return ParserResult::ok( ParseResultType::Matched );
		}
		inline auto convertInto( std::string const &source, bool &target ) -> ParserResult {
			std::string srcLC = source;
			std::transform( srcLC.begin(), srcLC.end(), srcLC.begin(), []( char c ) { return static_cast<char>( ::tolower(c) ); } );
			if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" || srcLC == "on")
				target = true;
			else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" || srcLC == "off")
				target = false;
			else
				return ParserResult::runtimeError( "Expected a boolean value but did not recognise: '" + source + "'" );
			return ParserResult::ok( ParseResultType::Matched );
		}
#ifdef CLARA_CONFIG_OPTIONAL_TYPE
		template<typename T>
		inline auto convertInto( std::string const &source, CLARA_CONFIG_OPTIONAL_TYPE<T>& target ) -> ParserResult {
			T temp;
			auto result = convertInto( source, temp );
			if( result )
				target = std::move(temp);
			return result;
		}
#endif // CLARA_CONFIG_OPTIONAL_TYPE

		struct NonCopyable {
			NonCopyable() = default;
			NonCopyable( NonCopyable const & ) = delete;
			NonCopyable( NonCopyable && ) = delete;
			NonCopyable &operator=( NonCopyable const & ) = delete;
			NonCopyable &operator=( NonCopyable && ) = delete;
		};

		struct BoundRef : NonCopyable {
			virtual ~BoundRef() = default;
			virtual auto isContainer() const -> bool { return false; }
			virtual auto isFlag() const -> bool { return false; }
		};
		struct BoundValueRefBase : BoundRef {
			virtual auto setValue( std::string const &arg ) -> ParserResult = 0;
		};
		struct BoundFlagRefBase : BoundRef {
			virtual auto setFlag( bool flag ) -> ParserResult = 0;
			virtual auto isFlag() const -> bool { return true; }
		};

		template<typename T>
		struct BoundValueRef : BoundValueRefBase {
			T &m_ref;

			explicit BoundValueRef( T &ref ) : m_ref( ref ) {}

			auto setValue( std::string const &arg ) -> ParserResult override {
				return convertInto( arg, m_ref );
			}
		};

		template<typename T>
		struct BoundValueRef<std::vector<T>> : BoundValueRefBase {
			std::vector<T> &m_ref;

			explicit BoundValueRef( std::vector<T> &ref ) : m_ref( ref ) {}

			auto isContainer() const -> bool override { return true; }

			auto setValue( std::string const &arg ) -> ParserResult override {
				T temp;
				auto result = convertInto( arg, temp );
				if( result )
					m_ref.push_back( temp );
				return result;
			}
		};

		struct BoundFlagRef : BoundFlagRefBase {
			bool &m_ref;

			explicit BoundFlagRef( bool &ref ) : m_ref( ref ) {}

			auto setFlag( bool flag ) -> ParserResult override {
				m_ref = flag;
				return ParserResult::ok( ParseResultType::Matched );
			}
		};

		template<typename ReturnType>
		struct LambdaInvoker {
			static_assert( std::is_same<ReturnType, ParserResult>::value, "Lambda must return void or clara::ParserResult" );

			template<typename L, typename ArgType>
			static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
				return lambda( arg );
			}
		};

		template<>
		struct LambdaInvoker<void> {
			template<typename L, typename ArgType>
			static auto invoke( L const &lambda, ArgType const &arg ) -> ParserResult {
				lambda( arg );
				return ParserResult::ok( ParseResultType::Matched );
			}
		};

		template<typename ArgType, typename L>
		inline auto invokeLambda( L const &lambda, std::string const &arg ) -> ParserResult {
			ArgType temp{};
			auto result = convertInto( arg, temp );
			return !result
				? result
				: LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( lambda, temp );
		}

		template<typename L>
		struct BoundLambda : BoundValueRefBase {
			L m_lambda;

			static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
			explicit BoundLambda( L const &lambda ) : m_lambda( lambda ) {}

			auto setValue( std::string const &arg ) -> ParserResult override {
				return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>( m_lambda, arg );
			}
		};

		template<typename L>
		struct BoundFlagLambda : BoundFlagRefBase {
			L m_lambda;

			static_assert( UnaryLambdaTraits<L>::isValid, "Supplied lambda must take exactly one argument" );
			static_assert( std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value, "flags must be boolean" );

			explicit BoundFlagLambda( L const &lambda ) : m_lambda( lambda ) {}

			auto setFlag( bool flag ) -> ParserResult override {
				return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke( m_lambda, flag );
			}
		};

		enum class Optionality { Optional, Required };

		struct Parser;

		class ParserBase {
		public:
			virtual ~ParserBase() = default;
			virtual auto validate() const -> Result { return Result::ok(); }
			virtual auto parse( std::string const& exeName, TokenStream const &tokens) const -> InternalParseResult  = 0;
			virtual auto cardinality() const -> size_t { return 1; }

			auto parse( Args const &args ) const -> InternalParseResult {
				return parse( args.exeName(), TokenStream( args ) );
			}
		};

		template<typename DerivedT>
		class ComposableParserImpl : public ParserBase {
		public:
			template<typename T>
			auto operator|( T const &other ) const -> Parser;

			template<typename T>
			auto operator+( T const &other ) const -> Parser;
		};

		// Common code and state for Args and Opts
		template<typename DerivedT>
		class ParserRefImpl : public ComposableParserImpl<DerivedT> {
		protected:
			Optionality m_optionality = Optionality::Optional;
			std::shared_ptr<BoundRef> m_ref;
			std::string m_hint;
			std::string m_description;

			explicit ParserRefImpl( std::shared_ptr<BoundRef> const &ref ) : m_ref( ref ) {}

		public:
			template<typename T>
			ParserRefImpl( T &ref, std::string const &hint )
				:   m_ref( std::make_shared<BoundValueRef<T>>( ref ) ),
				m_hint( hint )
			{}

			template<typename LambdaT>
			ParserRefImpl( LambdaT const &ref, std::string const &hint )
				:   m_ref( std::make_shared<BoundLambda<LambdaT>>( ref ) ),
				m_hint(hint)
			{}

			auto operator()( std::string const &description ) -> DerivedT & {
				m_description = description;
				return static_cast<DerivedT &>( *this );
			}

			auto optional() -> DerivedT & {
				m_optionality = Optionality::Optional;
				return static_cast<DerivedT &>( *this );
			};

			auto required() -> DerivedT & {
				m_optionality = Optionality::Required;
				return static_cast<DerivedT &>( *this );
			};

			auto isOptional() const -> bool {
				return m_optionality == Optionality::Optional;
			}

			auto cardinality() const -> size_t override {
				if( m_ref->isContainer() )
					return 0;
				else
					return 1;
			}

			auto hint() const -> std::string { return m_hint; }
		};

		class ExeName : public ComposableParserImpl<ExeName> {
			std::shared_ptr<std::string> m_name;
			std::shared_ptr<BoundValueRefBase> m_ref;

			template<typename LambdaT>
			static auto makeRef(LambdaT const &lambda) -> std::shared_ptr<BoundValueRefBase> {
				return std::make_shared<BoundLambda<LambdaT>>( lambda) ;
			}

		public:
			ExeName() : m_name( std::make_shared<std::string>( "<executable>" ) ) {}

			explicit ExeName( std::string &ref ) : ExeName() {
				m_ref = std::make_shared<BoundValueRef<std::string>>( ref );
			}

			template<typename LambdaT>
			explicit ExeName( LambdaT const& lambda ) : ExeName() {
				m_ref = std::make_shared<BoundLambda<LambdaT>>( lambda );
			}

			// The exe name is not parsed out of the normal tokens, but is handled specially
			auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
				return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
			}

			auto name() const -> std::string { return *m_name; }
			auto set( std::string const& newName ) -> ParserResult {

				auto lastSlash = newName.find_last_of( "\\/" );
				auto filename = ( lastSlash == std::string::npos )
					? newName
					: newName.substr( lastSlash+1 );

				*m_name = filename;
				if( m_ref )
					return m_ref->setValue( filename );
				else
					return ParserResult::ok( ParseResultType::Matched );
			}
		};

		class Arg : public ParserRefImpl<Arg> {
		public:
			using ParserRefImpl::ParserRefImpl;

			auto parse( std::string const &, TokenStream const &tokens ) const -> InternalParseResult override {
				auto validationResult = validate();
				if( !validationResult )
					return InternalParseResult( validationResult );

				auto remainingTokens = tokens;
				auto const &token = *remainingTokens;
				if( token.type != TokenType::Argument )
					return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );

				assert( !m_ref->isFlag() );
				auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );

				auto result = valueRef->setValue( remainingTokens->token );
				if( !result )
					return InternalParseResult( result );
				else
					return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
			}
		};

		inline auto normaliseOpt( std::string const &optName ) -> std::string {
#ifdef CATCH_PLATFORM_WINDOWS
			if( optName[0] == '/' )
				return "-" + optName.substr( 1 );
			else
#endif
				return optName;
		}

		class Opt : public ParserRefImpl<Opt> {
		protected:
			std::vector<std::string> m_optNames;

		public:
			template<typename LambdaT>
			explicit Opt( LambdaT const &ref ) : ParserRefImpl( std::make_shared<BoundFlagLambda<LambdaT>>( ref ) ) {}

			explicit Opt( bool &ref ) : ParserRefImpl( std::make_shared<BoundFlagRef>( ref ) ) {}

			template<typename LambdaT>
			Opt( LambdaT const &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}

			template<typename T>
			Opt( T &ref, std::string const &hint ) : ParserRefImpl( ref, hint ) {}

			auto operator[]( std::string const &optName ) -> Opt & {
				m_optNames.push_back( optName );
				return *this;
			}

			auto getHelpColumns() const -> std::vector<HelpColumns> {
				std::ostringstream oss;
				bool first = true;
				for( auto const &opt : m_optNames ) {
					if (first)
						first = false;
					else
						oss << ", ";
					oss << opt;
				}
				if( !m_hint.empty() )
					oss << " <" << m_hint << ">";
				return { { oss.str(), m_description } };
			}

			auto isMatch( std::string const &optToken ) const -> bool {
				auto normalisedToken = normaliseOpt( optToken );
				for( auto const &name : m_optNames ) {
					if( normaliseOpt( name ) == normalisedToken )
						return true;
				}
				return false;
			}

			using ParserBase::parse;

			auto parse( std::string const&, TokenStream const &tokens ) const -> InternalParseResult override {
				auto validationResult = validate();
				if( !validationResult )
					return InternalParseResult( validationResult );

				auto remainingTokens = tokens;
				if( remainingTokens && remainingTokens->type == TokenType::Option ) {
					auto const &token = *remainingTokens;
					if( isMatch(token.token ) ) {
						if( m_ref->isFlag() ) {
							auto flagRef = static_cast<detail::BoundFlagRefBase*>( m_ref.get() );
							auto result = flagRef->setFlag( true );
							if( !result )
								return InternalParseResult( result );
							if( result.value() == ParseResultType::ShortCircuitAll )
								return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
						} else {
							auto valueRef = static_cast<detail::BoundValueRefBase*>( m_ref.get() );
							++remainingTokens;
							if( !remainingTokens )
								return InternalParseResult::runtimeError( "Expected argument following " + token.token );
							auto const &argToken = *remainingTokens;
							if( argToken.type != TokenType::Argument )
								return InternalParseResult::runtimeError( "Expected argument following " + token.token );
							auto result = valueRef->setValue( argToken.token );
							if( !result )
								return InternalParseResult( result );
							if( result.value() == ParseResultType::ShortCircuitAll )
								return InternalParseResult::ok( ParseState( result.value(), remainingTokens ) );
						}
						return InternalParseResult::ok( ParseState( ParseResultType::Matched, ++remainingTokens ) );
					}
				}
				return InternalParseResult::ok( ParseState( ParseResultType::NoMatch, remainingTokens ) );
			}

			auto validate() const -> Result override {
				if( m_optNames.empty() )
					return Result::logicError( "No options supplied to Opt" );
				for( auto const &name : m_optNames ) {
					if( name.empty() )
						return Result::logicError( "Option name cannot be empty" );
#ifdef CATCH_PLATFORM_WINDOWS
					if( name[0] != '-' && name[0] != '/' )
						return Result::logicError( "Option name must begin with '-' or '/'" );
#else
					if( name[0] != '-' )
						return Result::logicError( "Option name must begin with '-'" );
#endif
				}
				return ParserRefImpl::validate();
			}
		};

		struct Help : Opt {
			Help( bool &showHelpFlag )
				:   Opt([&]( bool flag ) {
				showHelpFlag = flag;
				return ParserResult::ok( ParseResultType::ShortCircuitAll );
			})
			{
				static_cast<Opt &>( *this )
					("display usage information")
					["-?"]["-h"]["--help"]
					.optional();
			}
		};

		struct Parser : ParserBase {

			mutable ExeName m_exeName;
			std::vector<Opt> m_options;
			std::vector<Arg> m_args;

			auto operator|=( ExeName const &exeName ) -> Parser & {
				m_exeName = exeName;
				return *this;
			}

			auto operator|=( Arg const &arg ) -> Parser & {
				m_args.push_back(arg);
				return *this;
			}

			auto operator|=( Opt const &opt ) -> Parser & {
				m_options.push_back(opt);
				return *this;
			}

			auto operator|=( Parser const &other ) -> Parser & {
				m_options.insert(m_options.end(), other.m_options.begin(), other.m_options.end());
				m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
				return *this;
			}

			template<typename T>
			auto operator|( T const &other ) const -> Parser {
				return Parser( *this ) |= other;
			}

			// Forward deprecated interface with '+' instead of '|'
			template<typename T>
			auto operator+=( T const &other ) -> Parser & { return operator|=( other ); }
			template<typename T>
			auto operator+( T const &other ) const -> Parser { return operator|( other ); }

			auto getHelpColumns() const -> std::vector<HelpColumns> {
				std::vector<HelpColumns> cols;
				for (auto const &o : m_options) {
					auto childCols = o.getHelpColumns();
					cols.insert( cols.end(), childCols.begin(), childCols.end() );
				}
				return cols;
			}

			void writeToStream( std::ostream &os ) const {
				if (!m_exeName.name().empty()) {
					os << "usage:\n" << "  " << m_exeName.name() << " ";
					bool required = true, first = true;
					for( auto const &arg : m_args ) {
						if (first)
							first = false;
						else
							os << " ";
						if( arg.isOptional() && required ) {
							os << "[";
							required = false;
						}
						os << "<" << arg.hint() << ">";
						if( arg.cardinality() == 0 )
							os << " ... ";
					}
					if( !required )
						os << "]";
					if( !m_options.empty() )
						os << " options";
					os << "\n\nwhere options are:" << std::endl;
				}

				auto rows = getHelpColumns();
				size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
				size_t optWidth = 0;
				for( auto const &cols : rows )
					optWidth = (std::max)(optWidth, cols.left.size() + 2);

				optWidth = (std::min)(optWidth, consoleWidth/2);

				for( auto const &cols : rows ) {
					auto row =
						TextFlow::Column( cols.left ).width( optWidth ).indent( 2 ) +
						TextFlow::Spacer(4) +
						TextFlow::Column( cols.right ).width( consoleWidth - 7 - optWidth );
					os << row << std::endl;
				}
			}

			friend auto operator<<( std::ostream &os, Parser const &parser ) -> std::ostream& {
				parser.writeToStream( os );
				return os;
			}

			auto validate() const -> Result override {
				for( auto const &opt : m_options ) {
					auto result = opt.validate();
					if( !result )
						return result;
				}
				for( auto const &arg : m_args ) {
					auto result = arg.validate();
					if( !result )
						return result;
				}
				return Result::ok();
			}

			using ParserBase::parse;

			auto parse( std::string const& exeName, TokenStream const &tokens ) const -> InternalParseResult override {

				struct ParserInfo {
					ParserBase const* parser = nullptr;
					size_t count = 0;
				};
				const size_t totalParsers = m_options.size() + m_args.size();
				assert( totalParsers < 512 );
				// ParserInfo parseInfos[totalParsers]; // <-- this is what we really want to do
				ParserInfo parseInfos[512];

				{
					size_t i = 0;
					for (auto const &opt : m_options) parseInfos[i++].parser = &opt;
					for (auto const &arg : m_args) parseInfos[i++].parser = &arg;
				}

				m_exeName.set( exeName );

				auto result = InternalParseResult::ok( ParseState( ParseResultType::NoMatch, tokens ) );
				while( result.value().remainingTokens() ) {
					bool tokenParsed = false;

					for( size_t i = 0; i < totalParsers; ++i ) {
						auto&  parseInfo = parseInfos[i];
						if( parseInfo.parser->cardinality() == 0 || parseInfo.count < parseInfo.parser->cardinality() ) {
							result = parseInfo.parser->parse(exeName, result.value().remainingTokens());
							if (!result)
								return result;
							if (result.value().type() != ParseResultType::NoMatch) {
								tokenParsed = true;
								++parseInfo.count;
								break;
							}
						}
					}

					if( result.value().type() == ParseResultType::ShortCircuitAll )
						return result;
					if( !tokenParsed )
						return InternalParseResult::runtimeError( "Unrecognised token: " + result.value().remainingTokens()->token );
				}
				// !TBD Check missing required options
				return result;
			}
		};

		template<typename DerivedT>
		template<typename T>
		auto ComposableParserImpl<DerivedT>::operator|( T const &other ) const -> Parser {
			return Parser() | static_cast<DerivedT const &>( *this ) | other;
		}
	} // namespace detail

	  // A Combined parser
	using detail::Parser;

	// A parser for options
	using detail::Opt;

	// A parser for arguments
	using detail::Arg;

	// Wrapper for argc, argv from main()
	using detail::Args;

	// Specifies the name of the executable
	using detail::ExeName;

	// Convenience wrapper for option parser that specifies the help option
	using detail::Help;

	// enum of result types from a parse
	using detail::ParseResultType;

	// Result type for parser operation
	using detail::ParserResult;

}} // namespace Catch::clara

   // end clara.hpp
#ifdef __clang__
#pragma clang diagnostic pop
#endif

   // Restore Clara's value for console width, if present
#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#endif

   // end catch_clara.h
namespace Catch {

	clara::Parser makeCommandLineParser( ConfigData& config );

} // end namespace Catch

  // end catch_commandline.h
#include <fstream>
#include <ctime>

namespace Catch {

	clara::Parser makeCommandLineParser( ConfigData& config ) {

		using namespace clara;

		auto const setWarning = [&]( std::string const& warning ) {
			auto warningSet = [&]() {
				if( warning == "NoAssertions" )
					return WarnAbout::NoAssertions;

				if ( warning == "NoTests" )
					return WarnAbout::NoTests;

				return WarnAbout::Nothing;
			}();

			if (warningSet == WarnAbout::Nothing)
				return ParserResult::runtimeError( "Unrecognised warning: '" + warning + "'" );
			config.warnings = static_cast<WarnAbout::What>( config.warnings | warningSet );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const loadTestNamesFromFile = [&]( std::string const& filename ) {
			std::ifstream f( filename.c_str() );
			if( !f.is_open() )
				return ParserResult::runtimeError( "Unable to load input file: '" + filename + "'" );

			std::string line;
			while( std::getline( f, line ) ) {
				line = trim(line);
				if( !line.empty() && !startsWith( line, '#' ) ) {
					if( !startsWith( line, '"' ) )
						line = '"' + line + '"';
					config.testsOrTags.push_back( line + ',' );
				}
			}
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setTestOrder = [&]( std::string const& order ) {
			if( startsWith( "declared", order ) )
				config.runOrder = RunTests::InDeclarationOrder;
			else if( startsWith( "lexical", order ) )
				config.runOrder = RunTests::InLexicographicalOrder;
			else if( startsWith( "random", order ) )
				config.runOrder = RunTests::InRandomOrder;
			else
				return clara::ParserResult::runtimeError( "Unrecognised ordering: '" + order + "'" );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setRngSeed = [&]( std::string const& seed ) {
			if( seed != "time" )
				return clara::detail::convertInto( seed, config.rngSeed );
			config.rngSeed = static_cast<unsigned int>( std::time(nullptr) );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setColourUsage = [&]( std::string const& useColour ) {
			auto mode = toLower( useColour );

			if( mode == "yes" )
				config.useColour = UseColour::Yes;
			else if( mode == "no" )
				config.useColour = UseColour::No;
			else if( mode == "auto" )
				config.useColour = UseColour::Auto;
			else
				return ParserResult::runtimeError( "colour mode must be one of: auto, yes or no. '" + useColour + "' not recognised" );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setWaitForKeypress = [&]( std::string const& keypress ) {
			auto keypressLc = toLower( keypress );
			if( keypressLc == "start" )
				config.waitForKeypress = WaitForKeypress::BeforeStart;
			else if( keypressLc == "exit" )
				config.waitForKeypress = WaitForKeypress::BeforeExit;
			else if( keypressLc == "both" )
				config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
			else
				return ParserResult::runtimeError( "keypress argument must be one of: start, exit or both. '" + keypress + "' not recognised" );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setVerbosity = [&]( std::string const& verbosity ) {
			auto lcVerbosity = toLower( verbosity );
			if( lcVerbosity == "quiet" )
				config.verbosity = Verbosity::Quiet;
			else if( lcVerbosity == "normal" )
				config.verbosity = Verbosity::Normal;
			else if( lcVerbosity == "high" )
				config.verbosity = Verbosity::High;
			else
				return ParserResult::runtimeError( "Unrecognised verbosity, '" + verbosity + "'" );
			return ParserResult::ok( ParseResultType::Matched );
		};
		auto const setReporter = [&]( std::string const& reporter ) {
			IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();

			auto lcReporter = toLower( reporter );
			auto result = factories.find( lcReporter );

			if( factories.end() != result )
				config.reporterName = lcReporter;
			else
				return ParserResult::runtimeError( "Unrecognized reporter, '" + reporter + "'. Check available with --list-reporters" );
			return ParserResult::ok( ParseResultType::Matched );
		};

		auto cli
			= ExeName( config.processName )
			| Help( config.showHelp )
			| Opt( config.listTests )
			["-l"]["--list-tests"]
			( "list all/matching test cases" )
			| Opt( config.listTags )
			["-t"]["--list-tags"]
			( "list all/matching tags" )
			| Opt( config.showSuccessfulTests )
			["-s"]["--success"]
			( "include successful tests in output" )
			| Opt( config.shouldDebugBreak )
			["-b"]["--break"]
			( "break into debugger on failure" )
			| Opt( config.noThrow )
			["-e"]["--nothrow"]
			( "skip exception tests" )
			| Opt( config.showInvisibles )
			["-i"]["--invisibles"]
			( "show invisibles (tabs, newlines)" )
			| Opt( config.outputFilename, "filename" )
			["-o"]["--out"]
			( "output filename" )
			| Opt( setReporter, "name" )
			["-r"]["--reporter"]
			( "reporter to use (defaults to console)" )
			| Opt( config.name, "name" )
			["-n"]["--name"]
			( "suite name" )
			| Opt( [&]( bool ){ config.abortAfter = 1; } )
			["-a"]["--abort"]
			( "abort at first failure" )
			| Opt( [&]( int x ){ config.abortAfter = x; }, "no. failures" )
			["-x"]["--abortx"]
			( "abort after x failures" )
			| Opt( setWarning, "warning name" )
			["-w"]["--warn"]
			( "enable warnings" )
			| Opt( [&]( bool flag ) { config.showDurations = flag ? ShowDurations::Always : ShowDurations::Never; }, "yes|no" )
			["-d"]["--durations"]
			( "show test durations" )
			| Opt( loadTestNamesFromFile, "filename" )
			["-f"]["--input-file"]
			( "load test names to run from a file" )
			| Opt( config.filenamesAsTags )
			["-#"]["--filenames-as-tags"]
			( "adds a tag for the filename" )
			| Opt( config.sectionsToRun, "section name" )
			["-c"]["--section"]
			( "specify section to run" )
			| Opt( setVerbosity, "quiet|normal|high" )
			["-v"]["--verbosity"]
			( "set output verbosity" )
			| Opt( config.listTestNamesOnly )
			["--list-test-names-only"]
		( "list all/matching test cases names only" )
			| Opt( config.listReporters )
			["--list-reporters"]
		( "list all reporters" )
			| Opt( setTestOrder, "decl|lex|rand" )
			["--order"]
		( "test case order (defaults to decl)" )
			| Opt( setRngSeed, "'time'|number" )
			["--rng-seed"]
		( "set a specific seed for random numbers" )
			| Opt( setColourUsage, "yes|no" )
			["--use-colour"]
		( "should output be colourised" )
			| Opt( config.libIdentify )
			["--libidentify"]
		( "report name and version according to libidentify standard" )
			| Opt( setWaitForKeypress, "start|exit|both" )
			["--wait-for-keypress"]
		( "waits for a keypress before exiting" )
			| Opt( config.benchmarkResolutionMultiple, "multiplier" )
			["--benchmark-resolution-multiple"]
		( "multiple of clock resolution to run benchmarks" )

			| Arg( config.testsOrTags, "test name|pattern|tags" )
			( "which test or tests to use" );

		return cli;
	}

} // end namespace Catch
  // end catch_commandline.cpp
  // start catch_common.cpp

#include <cstring>
#include <ostream>

namespace Catch {

	bool SourceLineInfo::empty() const noexcept {
		return file[0] == '\0';
	}
	bool SourceLineInfo::operator == ( SourceLineInfo const& other ) const noexcept {
		return line == other.line && (file == other.file || std::strcmp(file, other.file) == 0);
	}
	bool SourceLineInfo::operator < ( SourceLineInfo const& other ) const noexcept {
		// We can assume that the same file will usually have the same pointer.
		// Thus, if the pointers are the same, there is no point in calling the strcmp
		return line < other.line || ( line == other.line && file != other.file && (std::strcmp(file, other.file) < 0));
	}

	std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info ) {
#ifndef __GNUG__
		os << info.file << '(' << info.line << ')';
#else
		os << info.file << ':' << info.line;
#endif
		return os;
	}

	std::string StreamEndStop::operator+() const {
		return std::string();
	}

	NonCopyable::NonCopyable() = default;
	NonCopyable::~NonCopyable() = default;

}
// end catch_common.cpp
// start catch_config.cpp

namespace Catch {

	Config::Config( ConfigData const& data )
		:   m_data( data ),
		m_stream( openStream() )
	{
		TestSpecParser parser(ITagAliasRegistry::get());
		if (data.testsOrTags.empty()) {
			parser.parse("~[.]"); // All not hidden tests
		}
		else {
			m_hasTestFilters = true;
			for( auto const& testOrTags : data.testsOrTags )
				parser.parse( testOrTags );
		}
		m_testSpec = parser.testSpec();
	}

	std::string const& Config::getFilename() const {
		return m_data.outputFilename ;
	}

	bool Config::listTests() const          { return m_data.listTests; }
	bool Config::listTestNamesOnly() const  { return m_data.listTestNamesOnly; }
	bool Config::listTags() const           { return m_data.listTags; }
	bool Config::listReporters() const      { return m_data.listReporters; }

	std::string Config::getProcessName() const { return m_data.processName; }
	std::string const& Config::getReporterName() const { return m_data.reporterName; }

	std::vector<std::string> const& Config::getTestsOrTags() const { return m_data.testsOrTags; }
	std::vector<std::string> const& Config::getSectionsToRun() const { return m_data.sectionsToRun; }

	TestSpec const& Config::testSpec() const { return m_testSpec; }
	bool Config::hasTestFilters() const { return m_hasTestFilters; }

	bool Config::showHelp() const { return m_data.showHelp; }

	// IConfig interface
	bool Config::allowThrows() const                   { return !m_data.noThrow; }
	std::ostream& Config::stream() const               { return m_stream->stream(); }
	std::string Config::name() const                   { return m_data.name.empty() ? m_data.processName : m_data.name; }
	bool Config::includeSuccessfulResults() const      { return m_data.showSuccessfulTests; }
	bool Config::warnAboutMissingAssertions() const    { return !!(m_data.warnings & WarnAbout::NoAssertions); }
	bool Config::warnAboutNoTests() const              { return !!(m_data.warnings & WarnAbout::NoTests); }
	ShowDurations::OrNot Config::showDurations() const { return m_data.showDurations; }
	RunTests::InWhatOrder Config::runOrder() const     { return m_data.runOrder; }
	unsigned int Config::rngSeed() const               { return m_data.rngSeed; }
	int Config::benchmarkResolutionMultiple() const    { return m_data.benchmarkResolutionMultiple; }
	UseColour::YesOrNo Config::useColour() const       { return m_data.useColour; }
	bool Config::shouldDebugBreak() const              { return m_data.shouldDebugBreak; }
	int Config::abortAfter() const                     { return m_data.abortAfter; }
	bool Config::showInvisibles() const                { return m_data.showInvisibles; }
	Verbosity Config::verbosity() const                { return m_data.verbosity; }

	IStream const* Config::openStream() {
		return Catch::makeStream(m_data.outputFilename);
	}

} // end namespace Catch
  // end catch_config.cpp
  // start catch_console_colour.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

  // start catch_errno_guard.h

namespace Catch {

	class ErrnoGuard {
	public:
		ErrnoGuard();
		~ErrnoGuard();
	private:
		int m_oldErrno;
	};

}

// end catch_errno_guard.h
#include <sstream>

namespace Catch {
	namespace {

		struct IColourImpl {
			virtual ~IColourImpl() = default;
			virtual void use( Colour::Code _colourCode ) = 0;
		};

		struct NoColourImpl : IColourImpl {
			void use( Colour::Code ) {}

			static IColourImpl* instance() {
				static NoColourImpl s_instance;
				return &s_instance;
			}
		};

	} // anon namespace
} // namespace Catch

#if !defined( CATCH_CONFIG_COLOUR_NONE ) && !defined( CATCH_CONFIG_COLOUR_WINDOWS ) && !defined( CATCH_CONFIG_COLOUR_ANSI )
#   ifdef CATCH_PLATFORM_WINDOWS
#       define CATCH_CONFIG_COLOUR_WINDOWS
#   else
#       define CATCH_CONFIG_COLOUR_ANSI
#   endif
#endif

#if defined ( CATCH_CONFIG_COLOUR_WINDOWS ) /////////////////////////////////////////

namespace Catch {
	namespace {

		class Win32ColourImpl : public IColourImpl {
		public:
			Win32ColourImpl() : stdoutHandle( GetStdHandle(STD_OUTPUT_HANDLE) )
			{
				CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
				GetConsoleScreenBufferInfo( stdoutHandle, &csbiInfo );
				originalForegroundAttributes = csbiInfo.wAttributes & ~( BACKGROUND_GREEN | BACKGROUND_RED | BACKGROUND_BLUE | BACKGROUND_INTENSITY );
				originalBackgroundAttributes = csbiInfo.wAttributes & ~( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE | FOREGROUND_INTENSITY );
			}

			virtual void use( Colour::Code _colourCode ) override {
				switch( _colourCode ) {
				case Colour::None:      return setTextAttribute( originalForegroundAttributes );
				case Colour::White:     return setTextAttribute( FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
				case Colour::Red:       return setTextAttribute( FOREGROUND_RED );
				case Colour::Green:     return setTextAttribute( FOREGROUND_GREEN );
				case Colour::Blue:      return setTextAttribute( FOREGROUND_BLUE );
				case Colour::Cyan:      return setTextAttribute( FOREGROUND_BLUE | FOREGROUND_GREEN );
				case Colour::Yellow:    return setTextAttribute( FOREGROUND_RED | FOREGROUND_GREEN );
				case Colour::Grey:      return setTextAttribute( 0 );

				case Colour::LightGrey:     return setTextAttribute( FOREGROUND_INTENSITY );
				case Colour::BrightRed:     return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED );
				case Colour::BrightGreen:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN );
				case Colour::BrightWhite:   return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_RED | FOREGROUND_BLUE );
				case Colour::BrightYellow:  return setTextAttribute( FOREGROUND_INTENSITY | FOREGROUND_RED | FOREGROUND_GREEN );

				case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );

				default:
					CATCH_ERROR( "Unknown colour requested" );
				}
			}

		private:
			void setTextAttribute( WORD _textAttribute ) {
				SetConsoleTextAttribute( stdoutHandle, _textAttribute | originalBackgroundAttributes );
			}
			HANDLE stdoutHandle;
			WORD originalForegroundAttributes;
			WORD originalBackgroundAttributes;
		};

		IColourImpl* platformColourInstance() {
			static Win32ColourImpl s_instance;

			IConfigPtr config = getCurrentContext().getConfig();
			UseColour::YesOrNo colourMode = config
				? config->useColour()
				: UseColour::Auto;
			if( colourMode == UseColour::Auto )
				colourMode = UseColour::Yes;
			return colourMode == UseColour::Yes
				? &s_instance
				: NoColourImpl::instance();
		}

	} // end anon namespace
} // end namespace Catch

#elif defined( CATCH_CONFIG_COLOUR_ANSI ) //////////////////////////////////////

#include <unistd.h>

namespace Catch {
	namespace {

		// use POSIX/ ANSI console terminal codes
		// Thanks to Adam Strzelecki for original contribution
		// (http://github.com/nanoant)
		// https://github.com/philsquared/Catch/pull/131
		class PosixColourImpl : public IColourImpl {
		public:
			virtual void use( Colour::Code _colourCode ) override {
				switch( _colourCode ) {
				case Colour::None:
				case Colour::White:     return setColour( "[0m" );
				case Colour::Red:       return setColour( "[0;31m" );
				case Colour::Green:     return setColour( "[0;32m" );
				case Colour::Blue:      return setColour( "[0;34m" );
				case Colour::Cyan:      return setColour( "[0;36m" );
				case Colour::Yellow:    return setColour( "[0;33m" );
				case Colour::Grey:      return setColour( "[1;30m" );

				case Colour::LightGrey:     return setColour( "[0;37m" );
				case Colour::BrightRed:     return setColour( "[1;31m" );
				case Colour::BrightGreen:   return setColour( "[1;32m" );
				case Colour::BrightWhite:   return setColour( "[1;37m" );
				case Colour::BrightYellow:  return setColour( "[1;33m" );

				case Colour::Bright: CATCH_INTERNAL_ERROR( "not a colour" );
				default: CATCH_INTERNAL_ERROR( "Unknown colour requested" );
				}
			}
			static IColourImpl* instance() {
				static PosixColourImpl s_instance;
				return &s_instance;
			}

		private:
			void setColour( const char* _escapeCode ) {
				Catch::cout() << '\033' << _escapeCode;
			}
		};

		bool useColourOnPlatform() {
			return
#ifdef CATCH_PLATFORM_MAC
				!isDebuggerActive() &&
#endif
#if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
				isatty(STDOUT_FILENO)
#else
				false
#endif
				;
		}
		IColourImpl* platformColourInstance() {
			ErrnoGuard guard;
			IConfigPtr config = getCurrentContext().getConfig();
			UseColour::YesOrNo colourMode = config
				? config->useColour()
				: UseColour::Auto;
			if( colourMode == UseColour::Auto )
				colourMode = useColourOnPlatform()
				? UseColour::Yes
				: UseColour::No;
			return colourMode == UseColour::Yes
				? PosixColourImpl::instance()
				: NoColourImpl::instance();
		}

	} // end anon namespace
} // end namespace Catch

#else  // not Windows or ANSI ///////////////////////////////////////////////

namespace Catch {

	static IColourImpl* platformColourInstance() { return NoColourImpl::instance(); }

} // end namespace Catch

#endif // Windows/ ANSI/ None

namespace Catch {

	Colour::Colour( Code _colourCode ) { use( _colourCode ); }
	Colour::Colour( Colour&& rhs ) noexcept {
		m_moved = rhs.m_moved;
		rhs.m_moved = true;
	}
	Colour& Colour::operator=( Colour&& rhs ) noexcept {
		m_moved = rhs.m_moved;
		rhs.m_moved  = true;
		return *this;
	}

	Colour::~Colour(){ if( !m_moved ) use( None ); }

	void Colour::use( Code _colourCode ) {
		static IColourImpl* impl = platformColourInstance();
		impl->use( _colourCode );
	}

	std::ostream& operator << ( std::ostream& os, Colour const& ) {
		return os;
	}

} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif

  // end catch_console_colour.cpp
  // start catch_context.cpp

namespace Catch {

	class Context : public IMutableContext, NonCopyable {

	public: // IContext
		virtual IResultCapture* getResultCapture() override {
			return m_resultCapture;
		}
		virtual IRunner* getRunner() override {
			return m_runner;
		}

		virtual IConfigPtr const& getConfig() const override {
			return m_config;
		}

		virtual ~Context() override;

	public: // IMutableContext
		virtual void setResultCapture( IResultCapture* resultCapture ) override {
			m_resultCapture = resultCapture;
		}
		virtual void setRunner( IRunner* runner ) override {
			m_runner = runner;
		}
		virtual void setConfig( IConfigPtr const& config ) override {
			m_config = config;
		}

		friend IMutableContext& getCurrentMutableContext();

	private:
		IConfigPtr m_config;
		IRunner* m_runner = nullptr;
		IResultCapture* m_resultCapture = nullptr;
	};

	IMutableContext *IMutableContext::currentContext = nullptr;

	void IMutableContext::createContext()
	{
		currentContext = new Context();
	}

	void cleanUpContext() {
		delete IMutableContext::currentContext;
		IMutableContext::currentContext = nullptr;
	}
	IContext::~IContext() = default;
	IMutableContext::~IMutableContext() = default;
	Context::~Context() = default;
}
// end catch_context.cpp
// start catch_debug_console.cpp

// start catch_debug_console.h

#include <string>

namespace Catch {
	void writeToDebugConsole( std::string const& text );
}

// end catch_debug_console.h
#ifdef CATCH_PLATFORM_WINDOWS

namespace Catch {
	void writeToDebugConsole( std::string const& text ) {
		::OutputDebugStringA( text.c_str() );
	}
}

#else

namespace Catch {
	void writeToDebugConsole( std::string const& text ) {
		// !TBD: Need a version for Mac/ XCode and other IDEs
		Catch::cout() << text;
	}
}

#endif // Platform
// end catch_debug_console.cpp
// start catch_debugger.cpp

#ifdef CATCH_PLATFORM_MAC

#  include <assert.h>
#  include <stdbool.h>
#  include <sys/types.h>
#  include <unistd.h>
#  include <sys/sysctl.h>
#  include <cstddef>
#  include <ostream>

namespace Catch {

	// The following function is taken directly from the following technical note:
	// http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html

	// Returns true if the current process is being debugged (either
	// running under the debugger or has a debugger attached post facto).
	bool isDebuggerActive(){

		int                 mib[4];
		struct kinfo_proc   info;
		std::size_t         size;

		// Initialize the flags so that, if sysctl fails for some bizarre
		// reason, we get a predictable result.

		info.kp_proc.p_flag = 0;

		// Initialize mib, which tells sysctl the info we want, in this case
		// we're looking for information about a specific process ID.

		mib[0] = CTL_KERN;
		mib[1] = KERN_PROC;
		mib[2] = KERN_PROC_PID;
		mib[3] = getpid();

		// Call sysctl.

		size = sizeof(info);
		if( sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0 ) {
			Catch::cerr() << "\n** Call to sysctl failed - unable to determine if debugger is active **\n" << std::endl;
			return false;
		}

		// We're being debugged if the P_TRACED flag is set.

		return ( (info.kp_proc.p_flag & P_TRACED) != 0 );
	}
} // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)
#include <fstream>
#include <string>

namespace Catch{
	// The standard POSIX way of detecting a debugger is to attempt to
	// ptrace() the process, but this needs to be done from a child and not
	// this process itself to still allow attaching to this process later
	// if wanted, so is rather heavy. Under Linux we have the PID of the
	// "debugger" (which doesn't need to be gdb, of course, it could also
	// be strace, for example) in /proc/$PID/status, so just get it from
	// there instead.
	bool isDebuggerActive(){
		// Libstdc++ has a bug, where std::ifstream sets errno to 0
		// This way our users can properly assert over errno values
		ErrnoGuard guard;
		std::ifstream in("/proc/self/status");
		for( std::string line; std::getline(in, line); ) {
			static const int PREFIX_LEN = 11;
			if( line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0 ) {
				// We're traced if the PID is not 0 and no other PID starts
				// with 0 digit, so it's enough to check for just a single
				// character.
				return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
			}
		}

		return false;
	}
} // namespace Catch
#elif defined(_MSC_VER)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
	bool isDebuggerActive() {
		return IsDebuggerPresent() != 0;
	}
}
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
	bool isDebuggerActive() {
		return IsDebuggerPresent() != 0;
	}
}
#else
namespace Catch {
	bool isDebuggerActive() { return false; }
}
#endif // Platform
// end catch_debugger.cpp
// start catch_decomposer.cpp

namespace Catch {

	ITransientExpression::~ITransientExpression() = default;

	void formatReconstructedExpression( std::ostream &os, std::string const& lhs, StringRef op, std::string const& rhs ) {
		if( lhs.size() + rhs.size() < 40 &&
			lhs.find('\n') == std::string::npos &&
			rhs.find('\n') == std::string::npos )
			os << lhs << " " << op << " " << rhs;
		else
			os << lhs << "\n" << op << "\n" << rhs;
	}
}
// end catch_decomposer.cpp
// start catch_enforce.cpp

namespace Catch {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
	[[noreturn]]
	void throw_exception(std::exception const& e) {
		Catch::cerr() << "Catch will terminate because it needed to throw an exception.\n"
			<< "The message was: " << e.what() << '\n';
		std::terminate();
	}
#endif
} // namespace Catch;
  // end catch_enforce.cpp
  // start catch_errno_guard.cpp

#include <cerrno>

namespace Catch {
	ErrnoGuard::ErrnoGuard():m_oldErrno(errno){}
	ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
}
// end catch_errno_guard.cpp
// start catch_exception_translator_registry.cpp

// start catch_exception_translator_registry.h

#include <vector>
#include <string>
#include <memory>

namespace Catch {

	class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
	public:
		~ExceptionTranslatorRegistry();
		virtual void registerTranslator( const IExceptionTranslator* translator );
		virtual std::string translateActiveException() const override;
		std::string tryTranslators() const;

	private:
		std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
	};
}

// end catch_exception_translator_registry.h
#ifdef __OBJC__
#import "Foundation/Foundation.h"
#endif

namespace Catch {

	ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {
	}

	void ExceptionTranslatorRegistry::registerTranslator( const IExceptionTranslator* translator ) {
		m_translators.push_back( std::unique_ptr<const IExceptionTranslator>( translator ) );
	}

#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
	std::string ExceptionTranslatorRegistry::translateActiveException() const {
		try {
#ifdef __OBJC__
			// In Objective-C try objective-c exceptions first
			@try {
				return tryTranslators();
			}
			@catch (NSException *exception) {
				return Catch::Detail::stringify( [exception description] );
			}
#else
			// Compiling a mixed mode project with MSVC means that CLR
			// exceptions will be caught in (...) as well. However, these
			// do not fill-in std::current_exception and thus lead to crash
			// when attempting rethrow.
			// /EHa switch also causes structured exceptions to be caught
			// here, but they fill-in current_exception properly, so
			// at worst the output should be a little weird, instead of
			// causing a crash.
			if (std::current_exception() == nullptr) {
				return "Non C++ exception. Possibly a CLR exception.";
			}
			return tryTranslators();
#endif
		}
		catch( TestFailureException& ) {
			std::rethrow_exception(std::current_exception());
		}
		catch( std::exception& ex ) {
			return ex.what();
		}
		catch( std::string& msg ) {
			return msg;
		}
		catch( const char* msg ) {
			return msg;
		}
		catch(...) {
			return "Unknown exception";
		}
	}

#else // ^^ Exceptions are enabled // Exceptions are disabled vv
	std::string ExceptionTranslatorRegistry::translateActiveException() const {
		CATCH_INTERNAL_ERROR("Attempted to translate active exception under CATCH_CONFIG_DISABLE_EXCEPTIONS!");
	}
#endif

	std::string ExceptionTranslatorRegistry::tryTranslators() const {
		if( m_translators.empty() )
			std::rethrow_exception(std::current_exception());
		else
			return m_translators[0]->translate( m_translators.begin()+1, m_translators.end() );
	}
}
// end catch_exception_translator_registry.cpp
// start catch_fatal_condition.cpp

#if defined(__GNUC__)
#    pragma GCC diagnostic push
#    pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif

#if defined( CATCH_CONFIG_WINDOWS_SEH ) || defined( CATCH_CONFIG_POSIX_SIGNALS )

namespace {
	// Report the error condition
	void reportFatal( char const * const message ) {
		Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition( message );
	}
}

#endif // signals/SEH handling

#if defined( CATCH_CONFIG_WINDOWS_SEH )

namespace Catch {
	struct SignalDefs { DWORD id; const char* name; };

	// There is no 1-1 mapping between signals and windows exceptions.
	// Windows can easily distinguish between SO and SigSegV,
	// but SigInt, SigTerm, etc are handled differently.
	static SignalDefs signalDefs[] = {
		{ EXCEPTION_ILLEGAL_INSTRUCTION,  "SIGILL - Illegal instruction signal" },
	{ EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow" },
	{ EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal" },
	{ EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error" },
	};

	LONG CALLBACK FatalConditionHandler::handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo) {
		for (auto const& def : signalDefs) {
			if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
				reportFatal(def.name);
			}
		}
		// If its not an exception we care about, pass it along.
		// This stops us from eating debugger breaks etc.
		return EXCEPTION_CONTINUE_SEARCH;
	}

	FatalConditionHandler::FatalConditionHandler() {
		isSet = true;
		// 32k seems enough for Catch to handle stack overflow,
		// but the value was found experimentally, so there is no strong guarantee
		guaranteeSize = 32 * 1024;
		exceptionHandlerHandle = nullptr;
		// Register as first handler in current chain
		exceptionHandlerHandle = AddVectoredExceptionHandler(1, handleVectoredException);
		// Pass in guarantee size to be filled
		SetThreadStackGuarantee(&guaranteeSize);
	}

	void FatalConditionHandler::reset() {
		if (isSet) {
			RemoveVectoredExceptionHandler(exceptionHandlerHandle);
			SetThreadStackGuarantee(&guaranteeSize);
			exceptionHandlerHandle = nullptr;
			isSet = false;
		}
	}

	FatalConditionHandler::~FatalConditionHandler() {
		reset();
	}

	bool FatalConditionHandler::isSet = false;
	ULONG FatalConditionHandler::guaranteeSize = 0;
	PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;

} // namespace Catch

#elif defined( CATCH_CONFIG_POSIX_SIGNALS )

namespace Catch {

	struct SignalDefs {
		int id;
		const char* name;
	};

	// 32kb for the alternate stack seems to be sufficient. However, this value
	// is experimentally determined, so that's not guaranteed.
	constexpr static std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;

	static SignalDefs signalDefs[] = {
		{ SIGINT,  "SIGINT - Terminal interrupt signal" },
	{ SIGILL,  "SIGILL - Illegal instruction signal" },
	{ SIGFPE,  "SIGFPE - Floating point error signal" },
	{ SIGSEGV, "SIGSEGV - Segmentation violation signal" },
	{ SIGTERM, "SIGTERM - Termination request signal" },
	{ SIGABRT, "SIGABRT - Abort (abnormal termination) signal" }
	};

	void FatalConditionHandler::handleSignal( int sig ) {
		char const * name = "<unknown signal>";
		for (auto const& def : signalDefs) {
			if (sig == def.id) {
				name = def.name;
				break;
			}
		}
		reset();
		reportFatal(name);
		raise( sig );
	}

	FatalConditionHandler::FatalConditionHandler() {
		isSet = true;
		stack_t sigStack;
		sigStack.ss_sp = altStackMem;
		sigStack.ss_size = sigStackSize;
		sigStack.ss_flags = 0;
		sigaltstack(&sigStack, &oldSigStack);
		struct sigaction sa = { };

		sa.sa_handler = handleSignal;
		sa.sa_flags = SA_ONSTACK;
		for (std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i) {
			sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
		}
	}

	FatalConditionHandler::~FatalConditionHandler() {
		reset();
	}

	void FatalConditionHandler::reset() {
		if( isSet ) {
			// Set signals back to previous values -- hopefully nobody overwrote them in the meantime
			for( std::size_t i = 0; i < sizeof(signalDefs)/sizeof(SignalDefs); ++i ) {
				sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
			}
			// Return the old stack
			sigaltstack(&oldSigStack, nullptr);
			isSet = false;
		}
	}

	bool FatalConditionHandler::isSet = false;
	struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs)/sizeof(SignalDefs)] = {};
	stack_t FatalConditionHandler::oldSigStack = {};
	char FatalConditionHandler::altStackMem[sigStackSize] = {};

} // namespace Catch

#else

namespace Catch {
	void FatalConditionHandler::reset() {}
}

#endif // signals/SEH handling

#if defined(__GNUC__)
#    pragma GCC diagnostic pop
#endif
// end catch_fatal_condition.cpp
// start catch_generators.cpp

// start catch_random_number_generator.h

#include <algorithm>
#include <random>

namespace Catch {

	struct IConfig;

	std::mt19937& rng();
	void seedRng( IConfig const& config );
	unsigned int rngSeed();

}

// end catch_random_number_generator.h
#include <limits>
#include <set>

namespace Catch {

	IGeneratorTracker::~IGeneratorTracker() {}

	namespace Generators {

		GeneratorBase::~GeneratorBase() {}

		std::vector<size_t> randomiseIndices( size_t selectionSize, size_t sourceSize ) {

			assert( selectionSize <= sourceSize );
			std::vector<size_t> indices;
			indices.reserve( selectionSize );
			std::uniform_int_distribution<size_t> uid( 0, sourceSize-1 );

			std::set<size_t> seen;
			// !TBD: improve this algorithm
			while( indices.size() < selectionSize ) {
				auto index = uid( rng() );
				if( seen.insert( index ).second )
					indices.push_back( index );
			}
			return indices;
		}

		auto acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
			return getResultCapture().acquireGeneratorTracker( lineInfo );
		}

		template<>
		auto all<int>() -> Generator<int> {
			return range( std::numeric_limits<int>::min(), std::numeric_limits<int>::max() );
		}

	} // namespace Generators
} // namespace Catch
  // end catch_generators.cpp
  // start catch_interfaces_capture.cpp

namespace Catch {
	IResultCapture::~IResultCapture() = default;
}
// end catch_interfaces_capture.cpp
// start catch_interfaces_config.cpp

namespace Catch {
	IConfig::~IConfig() = default;
}
// end catch_interfaces_config.cpp
// start catch_interfaces_exception.cpp

namespace Catch {
	IExceptionTranslator::~IExceptionTranslator() = default;
	IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
}
// end catch_interfaces_exception.cpp
// start catch_interfaces_registry_hub.cpp

namespace Catch {
	IRegistryHub::~IRegistryHub() = default;
	IMutableRegistryHub::~IMutableRegistryHub() = default;
}
// end catch_interfaces_registry_hub.cpp
// start catch_interfaces_reporter.cpp

// start catch_reporter_listening.h

namespace Catch {

	class ListeningReporter : public IStreamingReporter {
		using Reporters = std::vector<IStreamingReporterPtr>;
		Reporters m_listeners;
		IStreamingReporterPtr m_reporter = nullptr;
		ReporterPreferences m_preferences;

	public:
		ListeningReporter();

		void addListener( IStreamingReporterPtr&& listener );
		void addReporter( IStreamingReporterPtr&& reporter );

	public: // IStreamingReporter

		ReporterPreferences getPreferences() const override;

		void noMatchingTestCases( std::string const& spec ) override;

		static std::set<Verbosity> getSupportedVerbosities();

		void benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) override;
		void benchmarkEnded( BenchmarkStats const& benchmarkStats ) override;

		void testRunStarting( TestRunInfo const& testRunInfo ) override;
		void testGroupStarting( GroupInfo const& groupInfo ) override;
		void testCaseStarting( TestCaseInfo const& testInfo ) override;
		void sectionStarting( SectionInfo const& sectionInfo ) override;
		void assertionStarting( AssertionInfo const& assertionInfo ) override;

		// The return value indicates if the messages buffer should be cleared:
		bool assertionEnded( AssertionStats const& assertionStats ) override;
		void sectionEnded( SectionStats const& sectionStats ) override;
		void testCaseEnded( TestCaseStats const& testCaseStats ) override;
		void testGroupEnded( TestGroupStats const& testGroupStats ) override;
		void testRunEnded( TestRunStats const& testRunStats ) override;

		void skipTest( TestCaseInfo const& testInfo ) override;
		bool isMulti() const override;

	};

} // end namespace Catch

  // end catch_reporter_listening.h
namespace Catch {

	ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig )
		:   m_stream( &_fullConfig->stream() ), m_fullConfig( _fullConfig ) {}

	ReporterConfig::ReporterConfig( IConfigPtr const& _fullConfig, std::ostream& _stream )
		:   m_stream( &_stream ), m_fullConfig( _fullConfig ) {}

	std::ostream& ReporterConfig::stream() const { return *m_stream; }
	IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }

	TestRunInfo::TestRunInfo( std::string const& _name ) : name( _name ) {}

	GroupInfo::GroupInfo(  std::string const& _name,
		std::size_t _groupIndex,
		std::size_t _groupsCount )
		:   name( _name ),
		groupIndex( _groupIndex ),
		groupsCounts( _groupsCount )
	{}

	AssertionStats::AssertionStats( AssertionResult const& _assertionResult,
		std::vector<MessageInfo> const& _infoMessages,
		Totals const& _totals )
		:   assertionResult( _assertionResult ),
		infoMessages( _infoMessages ),
		totals( _totals )
	{
		assertionResult.m_resultData.lazyExpression.m_transientExpression = _assertionResult.m_resultData.lazyExpression.m_transientExpression;

		if( assertionResult.hasMessage() ) {
			// Copy message into messages list.
			// !TBD This should have been done earlier, somewhere
			MessageBuilder builder( assertionResult.getTestMacroName(), assertionResult.getSourceInfo(), assertionResult.getResultType() );
			builder << assertionResult.getMessage();
			builder.m_info.message = builder.m_stream.str();

			infoMessages.push_back( builder.m_info );
		}
	}

	AssertionStats::~AssertionStats() = default;

	SectionStats::SectionStats(  SectionInfo const& _sectionInfo,
		Counts const& _assertions,
		double _durationInSeconds,
		bool _missingAssertions )
		:   sectionInfo( _sectionInfo ),
		assertions( _assertions ),
		durationInSeconds( _durationInSeconds ),
		missingAssertions( _missingAssertions )
	{}

	SectionStats::~SectionStats() = default;

	TestCaseStats::TestCaseStats(  TestCaseInfo const& _testInfo,
		Totals const& _totals,
		std::string const& _stdOut,
		std::string const& _stdErr,
		bool _aborting )
		: testInfo( _testInfo ),
		totals( _totals ),
		stdOut( _stdOut ),
		stdErr( _stdErr ),
		aborting( _aborting )
	{}

	TestCaseStats::~TestCaseStats() = default;

	TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo,
		Totals const& _totals,
		bool _aborting )
		:   groupInfo( _groupInfo ),
		totals( _totals ),
		aborting( _aborting )
	{}

	TestGroupStats::TestGroupStats( GroupInfo const& _groupInfo )
		:   groupInfo( _groupInfo ),
		aborting( false )
	{}

	TestGroupStats::~TestGroupStats() = default;

	TestRunStats::TestRunStats(   TestRunInfo const& _runInfo,
		Totals const& _totals,
		bool _aborting )
		:   runInfo( _runInfo ),
		totals( _totals ),
		aborting( _aborting )
	{}

	TestRunStats::~TestRunStats() = default;

	void IStreamingReporter::fatalErrorEncountered( StringRef ) {}
	bool IStreamingReporter::isMulti() const { return false; }

	IReporterFactory::~IReporterFactory() = default;
	IReporterRegistry::~IReporterRegistry() = default;

} // end namespace Catch
  // end catch_interfaces_reporter.cpp
  // start catch_interfaces_runner.cpp

namespace Catch {
	IRunner::~IRunner() = default;
}
// end catch_interfaces_runner.cpp
// start catch_interfaces_testcase.cpp

namespace Catch {
	ITestInvoker::~ITestInvoker() = default;
	ITestCaseRegistry::~ITestCaseRegistry() = default;
}
// end catch_interfaces_testcase.cpp
// start catch_leak_detector.cpp

#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>

namespace Catch {

	LeakDetector::LeakDetector() {
		int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
		flag |= _CRTDBG_LEAK_CHECK_DF;
		flag |= _CRTDBG_ALLOC_MEM_DF;
		_CrtSetDbgFlag(flag);
		_CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
		_CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
		// Change this to leaking allocation's number to break there
		_CrtSetBreakAlloc(-1);
	}
}

#else

Catch::LeakDetector::LeakDetector() {}

#endif

Catch::LeakDetector::~LeakDetector() {
	Catch::cleanUp();
}
// end catch_leak_detector.cpp
// start catch_list.cpp

// start catch_list.h

#include <set>

namespace Catch {

	std::size_t listTests( Config const& config );

	std::size_t listTestsNamesOnly( Config const& config );

	struct TagInfo {
		void add( std::string const& spelling );
		std::string all() const;

		std::set<std::string> spellings;
		std::size_t count = 0;
	};

	std::size_t listTags( Config const& config );

	std::size_t listReporters();

	Option<std::size_t> list( Config const& config );

} // end namespace Catch

  // end catch_list.h
  // start catch_text.h

namespace Catch {
	using namespace clara::TextFlow;
}

// end catch_text.h
#include <limits>
#include <algorithm>
#include <iomanip>

namespace Catch {

	std::size_t listTests( Config const& config ) {
		TestSpec testSpec = config.testSpec();
		if( config.hasTestFilters() )
			Catch::cout() << "Matching test cases:\n";
		else {
			Catch::cout() << "All available test cases:\n";
		}

		auto matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
		for( auto const& testCaseInfo : matchedTestCases ) {
			Colour::Code colour = testCaseInfo.isHidden()
				? Colour::SecondaryText
				: Colour::None;
			Colour colourGuard( colour );

			Catch::cout() << Column( testCaseInfo.name ).initialIndent( 2 ).indent( 4 ) << "\n";
			if( config.verbosity() >= Verbosity::High ) {
				Catch::cout() << Column( Catch::Detail::stringify( testCaseInfo.lineInfo ) ).indent(4) << std::endl;
				std::string description = testCaseInfo.description;
				if( description.empty() )
					description = "(NO DESCRIPTION)";
				Catch::cout() << Column( description ).indent(4) << std::endl;
			}
			if( !testCaseInfo.tags.empty() )
				Catch::cout() << Column( testCaseInfo.tagsAsString() ).indent( 6 ) << "\n";
		}

		if( !config.hasTestFilters() )
			Catch::cout() << pluralise( matchedTestCases.size(), "test case" ) << '\n' << std::endl;
		else
			Catch::cout() << pluralise( matchedTestCases.size(), "matching test case" ) << '\n' << std::endl;
		return matchedTestCases.size();
	}

	std::size_t listTestsNamesOnly( Config const& config ) {
		TestSpec testSpec = config.testSpec();
		std::size_t matchedTests = 0;
		std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
		for( auto const& testCaseInfo : matchedTestCases ) {
			matchedTests++;
			if( startsWith( testCaseInfo.name, '#' ) )
				Catch::cout() << '"' << testCaseInfo.name << '"';
			else
				Catch::cout() << testCaseInfo.name;
			if ( config.verbosity() >= Verbosity::High )
				Catch::cout() << "\t@" << testCaseInfo.lineInfo;
			Catch::cout() << std::endl;
		}
		return matchedTests;
	}

	void TagInfo::add( std::string const& spelling ) {
		++count;
		spellings.insert( spelling );
	}

	std::string TagInfo::all() const {
		std::string out;
		for( auto const& spelling : spellings )
			out += "[" + spelling + "]";
		return out;
	}

	std::size_t listTags( Config const& config ) {
		TestSpec testSpec = config.testSpec();
		if( config.hasTestFilters() )
			Catch::cout() << "Tags for matching test cases:\n";
		else {
			Catch::cout() << "All available tags:\n";
		}

		std::map<std::string, TagInfo> tagCounts;

		std::vector<TestCase> matchedTestCases = filterTests( getAllTestCasesSorted( config ), testSpec, config );
		for( auto const& testCase : matchedTestCases ) {
			for( auto const& tagName : testCase.getTestCaseInfo().tags ) {
				std::string lcaseTagName = toLower( tagName );
				auto countIt = tagCounts.find( lcaseTagName );
				if( countIt == tagCounts.end() )
					countIt = tagCounts.insert( std::make_pair( lcaseTagName, TagInfo() ) ).first;
				countIt->second.add( tagName );
			}
		}

		for( auto const& tagCount : tagCounts ) {
			ReusableStringStream rss;
			rss << "  " << std::setw(2) << tagCount.second.count << "  ";
			auto str = rss.str();
			auto wrapper = Column( tagCount.second.all() )
				.initialIndent( 0 )
				.indent( str.size() )
				.width( CATCH_CONFIG_CONSOLE_WIDTH-10 );
			Catch::cout() << str << wrapper << '\n';
		}
		Catch::cout() << pluralise( tagCounts.size(), "tag" ) << '\n' << std::endl;
		return tagCounts.size();
	}

	std::size_t listReporters() {
		Catch::cout() << "Available reporters:\n";
		IReporterRegistry::FactoryMap const& factories = getRegistryHub().getReporterRegistry().getFactories();
		std::size_t maxNameLen = 0;
		for( auto const& factoryKvp : factories )
			maxNameLen = (std::max)( maxNameLen, factoryKvp.first.size() );

		for( auto const& factoryKvp : factories ) {
			Catch::cout()
				<< Column( factoryKvp.first + ":" )
				.indent(2)
				.width( 5+maxNameLen )
				+  Column( factoryKvp.second->getDescription() )
				.initialIndent(0)
				.indent(2)
				.width( CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen-8 )
				<< "\n";
		}
		Catch::cout() << std::endl;
		return factories.size();
	}

	Option<std::size_t> list( Config const& config ) {
		Option<std::size_t> listedCount;
		if( config.listTests() )
			listedCount = listedCount.valueOr(0) + listTests( config );
		if( config.listTestNamesOnly() )
			listedCount = listedCount.valueOr(0) + listTestsNamesOnly( config );
		if( config.listTags() )
			listedCount = listedCount.valueOr(0) + listTags( config );
		if( config.listReporters() )
			listedCount = listedCount.valueOr(0) + listReporters();
		return listedCount;
	}

} // end namespace Catch
  // end catch_list.cpp
  // start catch_matchers.cpp

namespace Catch {
	namespace Matchers {
		namespace Impl {

			std::string MatcherUntypedBase::toString() const {
				if( m_cachedToString.empty() )
					m_cachedToString = describe();
				return m_cachedToString;
			}

			MatcherUntypedBase::~MatcherUntypedBase() = default;

		} // namespace Impl
	} // namespace Matchers

	using namespace Matchers;
	using Matchers::Impl::MatcherBase;

} // namespace Catch
  // end catch_matchers.cpp
  // start catch_matchers_floating.cpp

  // start catch_polyfills.hpp

namespace Catch {
	bool isnan(float f);
	bool isnan(double d);
}

// end catch_polyfills.hpp
// start catch_to_string.hpp

#include <string>

namespace Catch {
	template <typename T>
	std::string to_string(T const& t) {
#if defined(CATCH_CONFIG_CPP11_TO_STRING)
		return std::to_string(t);
#else
		ReusableStringStream rss;
		rss << t;
		return rss.str();
#endif
	}
} // end namespace Catch

  // end catch_to_string.hpp
#include <cstdlib>
#include <cstdint>
#include <cstring>

namespace Catch {
	namespace Matchers {
		namespace Floating {
			enum class FloatingPointKind : uint8_t {
				Float,
				Double
			};
		}
	}
}

namespace {

	template <typename T>
	struct Converter;

	template <>
	struct Converter<float> {
		static_assert(sizeof(float) == sizeof(int32_t), "Important ULP matcher assumption violated");
		Converter(float f) {
			std::memcpy(&i, &f, sizeof(f));
		}
		int32_t i;
	};

	template <>
	struct Converter<double> {
		static_assert(sizeof(double) == sizeof(int64_t), "Important ULP matcher assumption violated");
		Converter(double d) {
			std::memcpy(&i, &d, sizeof(d));
		}
		int64_t i;
	};

	template <typename T>
	auto convert(T t) -> Converter<T> {
		return Converter<T>(t);
	}

	template <typename FP>
	bool almostEqualUlps(FP lhs, FP rhs, int maxUlpDiff) {
		// Comparison with NaN should always be false.
		// This way we can rule it out before getting into the ugly details
		if (Catch::isnan(lhs) || Catch::isnan(rhs)) {
			return false;
		}

		auto lc = convert(lhs);
		auto rc = convert(rhs);

		if ((lc.i < 0) != (rc.i < 0)) {
			// Potentially we can have +0 and -0
			return lhs == rhs;
		}

		auto ulpDiff = std::abs(lc.i - rc.i);
		return ulpDiff <= maxUlpDiff;
	}

}

namespace Catch {
	namespace Matchers {
		namespace Floating {
			WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
				:m_target{ target }, m_margin{ margin } {
				CATCH_ENFORCE(margin >= 0, "Invalid margin: " << margin << '.'
					<< " Margin has to be non-negative.");
			}

			// Performs equivalent check of std::fabs(lhs - rhs) <= margin
			// But without the subtraction to allow for INFINITY in comparison
			bool WithinAbsMatcher::match(double const& matchee) const {
				return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
			}

			std::string WithinAbsMatcher::describe() const {
				return "is within " + ::Catch::Detail::stringify(m_margin) + " of " + ::Catch::Detail::stringify(m_target);
			}

			WithinUlpsMatcher::WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType)
				:m_target{ target }, m_ulps{ ulps }, m_type{ baseType } {
				CATCH_ENFORCE(ulps >= 0, "Invalid ULP setting: " << ulps << '.'
					<< " ULPs have to be non-negative.");
			}

#if defined(__clang__)
#pragma clang diagnostic push
			// Clang <3.5 reports on the default branch in the switch below
#pragma clang diagnostic ignored "-Wunreachable-code"
#endif

			bool WithinUlpsMatcher::match(double const& matchee) const {
				switch (m_type) {
				case FloatingPointKind::Float:
					return almostEqualUlps<float>(static_cast<float>(matchee), static_cast<float>(m_target), m_ulps);
				case FloatingPointKind::Double:
					return almostEqualUlps<double>(matchee, m_target, m_ulps);
				default:
					CATCH_INTERNAL_ERROR( "Unknown FloatingPointKind value" );
				}
			}

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

			std::string WithinUlpsMatcher::describe() const {
				return "is within " + Catch::to_string(m_ulps) + " ULPs of " + ::Catch::Detail::stringify(m_target) + ((m_type == FloatingPointKind::Float)? "f" : "");
			}

		}// namespace Floating

		Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff) {
			return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Double);
		}

		Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff) {
			return Floating::WithinUlpsMatcher(target, maxUlpDiff, Floating::FloatingPointKind::Float);
		}

		Floating::WithinAbsMatcher WithinAbs(double target, double margin) {
			return Floating::WithinAbsMatcher(target, margin);
		}

	} // namespace Matchers
} // namespace Catch

  // end catch_matchers_floating.cpp
  // start catch_matchers_generic.cpp

std::string Catch::Matchers::Generic::Detail::finalizeDescription(const std::string& desc) {
	if (desc.empty()) {
		return "matches undescribed predicate";
	} else {
		return "matches predicate: \"" + desc + '"';
	}
}
// end catch_matchers_generic.cpp
// start catch_matchers_string.cpp

#include <regex>

namespace Catch {
	namespace Matchers {

		namespace StdString {

			CasedString::CasedString( std::string const& str, CaseSensitive::Choice caseSensitivity )
				:   m_caseSensitivity( caseSensitivity ),
				m_str( adjustString( str ) )
			{}
			std::string CasedString::adjustString( std::string const& str ) const {
				return m_caseSensitivity == CaseSensitive::No
					? toLower( str )
					: str;
			}
			std::string CasedString::caseSensitivitySuffix() const {
				return m_caseSensitivity == CaseSensitive::No
					? " (case insensitive)"
					: std::string();
			}

			StringMatcherBase::StringMatcherBase( std::string const& operation, CasedString const& comparator )
				: m_comparator( comparator ),
				m_operation( operation ) {
			}

			std::string StringMatcherBase::describe() const {
				std::string description;
				description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
					m_comparator.caseSensitivitySuffix().size());
				description += m_operation;
				description += ": \"";
				description += m_comparator.m_str;
				description += "\"";
				description += m_comparator.caseSensitivitySuffix();
				return description;
			}

			EqualsMatcher::EqualsMatcher( CasedString const& comparator ) : StringMatcherBase( "equals", comparator ) {}

			bool EqualsMatcher::match( std::string const& source ) const {
				return m_comparator.adjustString( source ) == m_comparator.m_str;
			}

			ContainsMatcher::ContainsMatcher( CasedString const& comparator ) : StringMatcherBase( "contains", comparator ) {}

			bool ContainsMatcher::match( std::string const& source ) const {
				return contains( m_comparator.adjustString( source ), m_comparator.m_str );
			}

			StartsWithMatcher::StartsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "starts with", comparator ) {}

			bool StartsWithMatcher::match( std::string const& source ) const {
				return startsWith( m_comparator.adjustString( source ), m_comparator.m_str );
			}

			EndsWithMatcher::EndsWithMatcher( CasedString const& comparator ) : StringMatcherBase( "ends with", comparator ) {}

			bool EndsWithMatcher::match( std::string const& source ) const {
				return endsWith( m_comparator.adjustString( source ), m_comparator.m_str );
			}

			RegexMatcher::RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity): m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}

			bool RegexMatcher::match(std::string const& matchee) const {
				auto flags = std::regex::ECMAScript; // ECMAScript is the default syntax option anyway
				if (m_caseSensitivity == CaseSensitive::Choice::No) {
					flags |= std::regex::icase;
				}
				auto reg = std::regex(m_regex, flags);
				return std::regex_match(matchee, reg);
			}

			std::string RegexMatcher::describe() const {
				return "matches " + ::Catch::Detail::stringify(m_regex) + ((m_caseSensitivity == CaseSensitive::Choice::Yes)? " case sensitively" : " case insensitively");
			}

		} // namespace StdString

		StdString::EqualsMatcher Equals( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
			return StdString::EqualsMatcher( StdString::CasedString( str, caseSensitivity) );
		}
		StdString::ContainsMatcher Contains( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
			return StdString::ContainsMatcher( StdString::CasedString( str, caseSensitivity) );
		}
		StdString::EndsWithMatcher EndsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
			return StdString::EndsWithMatcher( StdString::CasedString( str, caseSensitivity) );
		}
		StdString::StartsWithMatcher StartsWith( std::string const& str, CaseSensitive::Choice caseSensitivity ) {
			return StdString::StartsWithMatcher( StdString::CasedString( str, caseSensitivity) );
		}

		StdString::RegexMatcher Matches(std::string const& regex, CaseSensitive::Choice caseSensitivity) {
			return StdString::RegexMatcher(regex, caseSensitivity);
		}

	} // namespace Matchers
} // namespace Catch
  // end catch_matchers_string.cpp
  // start catch_message.cpp

  // start catch_uncaught_exceptions.h

namespace Catch {
	bool uncaught_exceptions();
} // end namespace Catch

  // end catch_uncaught_exceptions.h
#include <cassert>
#include <stack>

namespace Catch {

	MessageInfo::MessageInfo(   StringRef const& _macroName,
		SourceLineInfo const& _lineInfo,
		ResultWas::OfType _type )
		:   macroName( _macroName ),
		lineInfo( _lineInfo ),
		type( _type ),
		sequence( ++globalCount )
	{}

	bool MessageInfo::operator==( MessageInfo const& other ) const {
		return sequence == other.sequence;
	}

	bool MessageInfo::operator<( MessageInfo const& other ) const {
		return sequence < other.sequence;
	}

	// This may need protecting if threading support is added
	unsigned int MessageInfo::globalCount = 0;

	////////////////////////////////////////////////////////////////////////////

	Catch::MessageBuilder::MessageBuilder( StringRef const& macroName,
		SourceLineInfo const& lineInfo,
		ResultWas::OfType type )
		:m_info(macroName, lineInfo, type) {}

	////////////////////////////////////////////////////////////////////////////

	ScopedMessage::ScopedMessage( MessageBuilder const& builder )
		: m_info( builder.m_info )
	{
		m_info.message = builder.m_stream.str();
		getResultCapture().pushScopedMessage( m_info );
	}

	ScopedMessage::~ScopedMessage() {
		if ( !uncaught_exceptions() ){
			getResultCapture().popScopedMessage(m_info);
		}
	}

	Capturer::Capturer( StringRef macroName, SourceLineInfo const& lineInfo, ResultWas::OfType resultType, StringRef names ) {
		auto trimmed = [&] (size_t start, size_t end) {
			while (names[start] == ',' || isspace(names[start])) {
				++start;
			}
			while (names[end] == ',' || isspace(names[end])) {
				--end;
			}
			return names.substr(start, end - start + 1);
		};

		size_t start = 0;
		std::stack<char> openings;
		for (size_t pos = 0; pos < names.size(); ++pos) {
			char c = names[pos];
			switch (c) {
			case '[':
			case '{':
			case '(':
				// It is basically impossible to disambiguate between
				// comparison and start of template args in this context
				//            case '<':
				openings.push(c);
				break;
			case ']':
			case '}':
			case ')':
				//           case '>':
				openings.pop();
				break;
			case ',':
				if (start != pos && openings.size() == 0) {
					m_messages.emplace_back(macroName, lineInfo, resultType);
					m_messages.back().message = trimmed(start, pos);
					m_messages.back().message += " := ";
					start = pos;
				}
			}
		}
		assert(openings.size() == 0 && "Mismatched openings");
		m_messages.emplace_back(macroName, lineInfo, resultType);
		m_messages.back().message = trimmed(start, names.size() - 1);
		m_messages.back().message += " := ";
	}
	Capturer::~Capturer() {
		if ( !uncaught_exceptions() ){
			assert( m_captured == m_messages.size() );
			for( size_t i = 0; i < m_captured; ++i  )
				m_resultCapture.popScopedMessage( m_messages[i] );
		}
	}

	void Capturer::captureValue( size_t index, std::string const& value ) {
		assert( index < m_messages.size() );
		m_messages[index].message += value;
		m_resultCapture.pushScopedMessage( m_messages[index] );
		m_captured++;
	}

} // end namespace Catch
  // end catch_message.cpp
  // start catch_output_redirect.cpp

  // start catch_output_redirect.h
#ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
#define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H

#include <cstdio>
#include <iosfwd>
#include <string>

namespace Catch {

	class RedirectedStream {
		std::ostream& m_originalStream;
		std::ostream& m_redirectionStream;
		std::streambuf* m_prevBuf;

	public:
		RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream );
		~RedirectedStream();
	};

	class RedirectedStdOut {
		ReusableStringStream m_rss;
		RedirectedStream m_cout;
	public:
		RedirectedStdOut();
		auto str() const -> std::string;
	};

	// StdErr has two constituent streams in C++, std::cerr and std::clog
	// This means that we need to redirect 2 streams into 1 to keep proper
	// order of writes
	class RedirectedStdErr {
		ReusableStringStream m_rss;
		RedirectedStream m_cerr;
		RedirectedStream m_clog;
	public:
		RedirectedStdErr();
		auto str() const -> std::string;
	};

#if defined(CATCH_CONFIG_NEW_CAPTURE)

	// Windows's implementation of std::tmpfile is terrible (it tries
	// to create a file inside system folder, thus requiring elevated
	// privileges for the binary), so we have to use tmpnam(_s) and
	// create the file ourselves there.
	class TempFile {
	public:
		TempFile(TempFile const&) = delete;
		TempFile& operator=(TempFile const&) = delete;
		TempFile(TempFile&&) = delete;
		TempFile& operator=(TempFile&&) = delete;

		TempFile();
		~TempFile();

		std::FILE* getFile();
		std::string getContents();

	private:
		std::FILE* m_file = nullptr;
#if defined(_MSC_VER)
		char m_buffer[L_tmpnam] = { 0 };
#endif
	};

	class OutputRedirect {
	public:
		OutputRedirect(OutputRedirect const&) = delete;
		OutputRedirect& operator=(OutputRedirect const&) = delete;
		OutputRedirect(OutputRedirect&&) = delete;
		OutputRedirect& operator=(OutputRedirect&&) = delete;

		OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
		~OutputRedirect();

	private:
		int m_originalStdout = -1;
		int m_originalStderr = -1;
		TempFile m_stdoutFile;
		TempFile m_stderrFile;
		std::string& m_stdoutDest;
		std::string& m_stderrDest;
	};

#endif

} // end namespace Catch

#endif // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
  // end catch_output_redirect.h
#include <cstdio>
#include <cstring>
#include <fstream>
#include <sstream>
#include <stdexcept>

#if defined(CATCH_CONFIG_NEW_CAPTURE)
#if defined(_MSC_VER)
#include <io.h>      //_dup and _dup2
#define dup _dup
#define dup2 _dup2
#define fileno _fileno
#else
#include <unistd.h>  // dup and dup2
#endif
#endif

namespace Catch {

	RedirectedStream::RedirectedStream( std::ostream& originalStream, std::ostream& redirectionStream )
		:   m_originalStream( originalStream ),
		m_redirectionStream( redirectionStream ),
		m_prevBuf( m_originalStream.rdbuf() )
	{
		m_originalStream.rdbuf( m_redirectionStream.rdbuf() );
	}

	RedirectedStream::~RedirectedStream() {
		m_originalStream.rdbuf( m_prevBuf );
	}

	RedirectedStdOut::RedirectedStdOut() : m_cout( Catch::cout(), m_rss.get() ) {}
	auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }

	RedirectedStdErr::RedirectedStdErr()
		:   m_cerr( Catch::cerr(), m_rss.get() ),
		m_clog( Catch::clog(), m_rss.get() )
	{}
	auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }

#if defined(CATCH_CONFIG_NEW_CAPTURE)

#if defined(_MSC_VER)
	TempFile::TempFile() {
		if (tmpnam_s(m_buffer)) {
			CATCH_RUNTIME_ERROR("Could not get a temp filename");
		}
		if (fopen_s(&m_file, m_buffer, "w")) {
			char buffer[100];
			if (strerror_s(buffer, errno)) {
				CATCH_RUNTIME_ERROR("Could not translate errno to a string");
			}
			CATCH_RUNTIME_ERROR("Coul dnot open the temp file: '" << m_buffer << "' because: " << buffer);
		}
	}
#else
	TempFile::TempFile() {
		m_file = std::tmpfile();
		if (!m_file) {
			CATCH_RUNTIME_ERROR("Could not create a temp file.");
		}
	}

#endif

	TempFile::~TempFile() {
		// TBD: What to do about errors here?
		std::fclose(m_file);
		// We manually create the file on Windows only, on Linux
		// it will be autodeleted
#if defined(_MSC_VER)
		std::remove(m_buffer);
#endif
	}

	FILE* TempFile::getFile() {
		return m_file;
	}

	std::string TempFile::getContents() {
		std::stringstream sstr;
		char buffer[100] = {};
		std::rewind(m_file);
		while (std::fgets(buffer, sizeof(buffer), m_file)) {
			sstr << buffer;
		}
		return sstr.str();
	}

	OutputRedirect::OutputRedirect(std::string& stdout_dest, std::string& stderr_dest) :
		m_originalStdout(dup(1)),
		m_originalStderr(dup(2)),
		m_stdoutDest(stdout_dest),
		m_stderrDest(stderr_dest) {
		dup2(fileno(m_stdoutFile.getFile()), 1);
		dup2(fileno(m_stderrFile.getFile()), 2);
	}

	OutputRedirect::~OutputRedirect() {
		Catch::cout() << std::flush;
		fflush(stdout);
		// Since we support overriding these streams, we flush cerr
		// even though std::cerr is unbuffered
		Catch::cerr() << std::flush;
		Catch::clog() << std::flush;
		fflush(stderr);

		dup2(m_originalStdout, 1);
		dup2(m_originalStderr, 2);

		m_stdoutDest += m_stdoutFile.getContents();
		m_stderrDest += m_stderrFile.getContents();
	}

#endif // CATCH_CONFIG_NEW_CAPTURE

} // namespace Catch

#if defined(CATCH_CONFIG_NEW_CAPTURE)
#if defined(_MSC_VER)
#undef dup
#undef dup2
#undef fileno
#endif
#endif
  // end catch_output_redirect.cpp
  // start catch_polyfills.cpp

#include <cmath>

namespace Catch {

#if !defined(CATCH_CONFIG_POLYFILL_ISNAN)
	bool isnan(float f) {
		return std::isnan(f);
	}
	bool isnan(double d) {
		return std::isnan(d);
	}
#else
	// For now we only use this for embarcadero
	bool isnan(float f) {
		return std::_isnan(f);
	}
	bool isnan(double d) {
		return std::_isnan(d);
	}
#endif

} // end namespace Catch
  // end catch_polyfills.cpp
  // start catch_random_number_generator.cpp

namespace Catch {

	std::mt19937& rng() {
		static std::mt19937 s_rng;
		return s_rng;
	}

	void seedRng( IConfig const& config ) {
		if( config.rngSeed() != 0 ) {
			std::srand( config.rngSeed() );
			rng().seed( config.rngSeed() );
		}
	}

	unsigned int rngSeed() {
		return getCurrentContext().getConfig()->rngSeed();
	}
}
// end catch_random_number_generator.cpp
// start catch_registry_hub.cpp

// start catch_test_case_registry_impl.h

#include <vector>
#include <set>
#include <algorithm>
#include <ios>

namespace Catch {

	class TestCase;
	struct IConfig;

	std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases );
	bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config );

	void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions );

	std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config );
	std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config );

	class TestRegistry : public ITestCaseRegistry {
	public:
		virtual ~TestRegistry() = default;

		virtual void registerTest( TestCase const& testCase );

		std::vector<TestCase> const& getAllTests() const override;
		std::vector<TestCase> const& getAllTestsSorted( IConfig const& config ) const override;

	private:
		std::vector<TestCase> m_functions;
		mutable RunTests::InWhatOrder m_currentSortOrder = RunTests::InDeclarationOrder;
		mutable std::vector<TestCase> m_sortedFunctions;
		std::size_t m_unnamedCount = 0;
		std::ios_base::Init m_ostreamInit; // Forces cout/ cerr to be initialised
	};

	///////////////////////////////////////////////////////////////////////////

	class TestInvokerAsFunction : public ITestInvoker {
		void(*m_testAsFunction)();
	public:
		TestInvokerAsFunction( void(*testAsFunction)() ) noexcept;

		void invoke() const override;
	};

	std::string extractClassName( StringRef const& classOrQualifiedMethodName );

	///////////////////////////////////////////////////////////////////////////

} // end namespace Catch

  // end catch_test_case_registry_impl.h
  // start catch_reporter_registry.h

#include <map>

namespace Catch {

	class ReporterRegistry : public IReporterRegistry {

	public:

		~ReporterRegistry() override;

		IStreamingReporterPtr create( std::string const& name, IConfigPtr const& config ) const override;

		void registerReporter( std::string const& name, IReporterFactoryPtr const& factory );
		void registerListener( IReporterFactoryPtr const& factory );

		FactoryMap const& getFactories() const override;
		Listeners const& getListeners() const override;

	private:
		FactoryMap m_factories;
		Listeners m_listeners;
	};
}

// end catch_reporter_registry.h
// start catch_tag_alias_registry.h

// start catch_tag_alias.h

#include <string>

namespace Catch {

	struct TagAlias {
		TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);

		std::string tag;
		SourceLineInfo lineInfo;
	};

} // end namespace Catch

  // end catch_tag_alias.h
#include <map>

namespace Catch {

	class TagAliasRegistry : public ITagAliasRegistry {
	public:
		~TagAliasRegistry() override;
		TagAlias const* find( std::string const& alias ) const override;
		std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
		void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );

	private:
		std::map<std::string, TagAlias> m_registry;
	};

} // end namespace Catch

  // end catch_tag_alias_registry.h
  // start catch_startup_exception_registry.h

#include <vector>
#include <exception>

namespace Catch {

	class StartupExceptionRegistry {
	public:
		void add(std::exception_ptr const& exception) noexcept;
		std::vector<std::exception_ptr> const& getExceptions() const noexcept;
	private:
		std::vector<std::exception_ptr> m_exceptions;
	};

} // end namespace Catch

  // end catch_startup_exception_registry.h
  // start catch_singletons.hpp

namespace Catch {

	struct ISingleton {
		virtual ~ISingleton();
	};

	void addSingleton( ISingleton* singleton );
	void cleanupSingletons();

	template<typename SingletonImplT, typename InterfaceT = SingletonImplT, typename MutableInterfaceT = InterfaceT>
	class Singleton : SingletonImplT, public ISingleton {

		static auto getInternal() -> Singleton* {
			static Singleton* s_instance = nullptr;
			if( !s_instance ) {
				s_instance = new Singleton;
				addSingleton( s_instance );
			}
			return s_instance;
		}

	public:
		static auto get() -> InterfaceT const& {
			return *getInternal();
		}
		static auto getMutable() -> MutableInterfaceT& {
			return *getInternal();
		}
	};

} // namespace Catch

  // end catch_singletons.hpp
namespace Catch {

	namespace {

		class RegistryHub : public IRegistryHub, public IMutableRegistryHub,
			private NonCopyable {

		public: // IRegistryHub
			RegistryHub() = default;
			IReporterRegistry const& getReporterRegistry() const override {
				return m_reporterRegistry;
			}
			ITestCaseRegistry const& getTestCaseRegistry() const override {
				return m_testCaseRegistry;
			}
			IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry() const override {
				return m_exceptionTranslatorRegistry;
			}
			ITagAliasRegistry const& getTagAliasRegistry() const override {
				return m_tagAliasRegistry;
			}
			StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
				return m_exceptionRegistry;
			}

		public: // IMutableRegistryHub
			void registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) override {
				m_reporterRegistry.registerReporter( name, factory );
			}
			void registerListener( IReporterFactoryPtr const& factory ) override {
				m_reporterRegistry.registerListener( factory );
			}
			void registerTest( TestCase const& testInfo ) override {
				m_testCaseRegistry.registerTest( testInfo );
			}
			void registerTranslator( const IExceptionTranslator* translator ) override {
				m_exceptionTranslatorRegistry.registerTranslator( translator );
			}
			void registerTagAlias( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) override {
				m_tagAliasRegistry.add( alias, tag, lineInfo );
			}
			void registerStartupException() noexcept override {
				m_exceptionRegistry.add(std::current_exception());
			}

		private:
			TestRegistry m_testCaseRegistry;
			ReporterRegistry m_reporterRegistry;
			ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
			TagAliasRegistry m_tagAliasRegistry;
			StartupExceptionRegistry m_exceptionRegistry;
		};
	}

	using RegistryHubSingleton = Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;

	IRegistryHub const& getRegistryHub() {
		return RegistryHubSingleton::get();
	}
	IMutableRegistryHub& getMutableRegistryHub() {
		return RegistryHubSingleton::getMutable();
	}
	void cleanUp() {
		cleanupSingletons();
		cleanUpContext();
	}
	std::string translateActiveException() {
		return getRegistryHub().getExceptionTranslatorRegistry().translateActiveException();
	}

} // end namespace Catch
  // end catch_registry_hub.cpp
  // start catch_reporter_registry.cpp

namespace Catch {

	ReporterRegistry::~ReporterRegistry() = default;

	IStreamingReporterPtr ReporterRegistry::create( std::string const& name, IConfigPtr const& config ) const {
		auto it =  m_factories.find( name );
		if( it == m_factories.end() )
			return nullptr;
		return it->second->create( ReporterConfig( config ) );
	}

	void ReporterRegistry::registerReporter( std::string const& name, IReporterFactoryPtr const& factory ) {
		m_factories.emplace(name, factory);
	}
	void ReporterRegistry::registerListener( IReporterFactoryPtr const& factory ) {
		m_listeners.push_back( factory );
	}

	IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
		return m_factories;
	}
	IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
		return m_listeners;
	}

}
// end catch_reporter_registry.cpp
// start catch_result_type.cpp

namespace Catch {

	bool isOk( ResultWas::OfType resultType ) {
		return ( resultType & ResultWas::FailureBit ) == 0;
	}
	bool isJustInfo( int flags ) {
		return flags == ResultWas::Info;
	}

	ResultDisposition::Flags operator | ( ResultDisposition::Flags lhs, ResultDisposition::Flags rhs ) {
		return static_cast<ResultDisposition::Flags>( static_cast<int>( lhs ) | static_cast<int>( rhs ) );
	}

	bool shouldContinueOnFailure( int flags )    { return ( flags & ResultDisposition::ContinueOnFailure ) != 0; }
	bool shouldSuppressFailure( int flags )      { return ( flags & ResultDisposition::SuppressFail ) != 0; }

} // end namespace Catch
  // end catch_result_type.cpp
  // start catch_run_context.cpp

#include <cassert>
#include <algorithm>
#include <sstream>

namespace Catch {

	namespace Generators {
		struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker {
			size_t m_index = static_cast<size_t>( -1 );
			GeneratorBasePtr m_generator;

			GeneratorTracker( TestCaseTracking::NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
				:   TrackerBase( nameAndLocation, ctx, parent )
			{}
			~GeneratorTracker();

			static GeneratorTracker& acquire( TrackerContext& ctx, TestCaseTracking::NameAndLocation const& nameAndLocation ) {
				std::shared_ptr<GeneratorTracker> tracker;

				ITracker& currentTracker = ctx.currentTracker();
				if( TestCaseTracking::ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
					assert( childTracker );
					assert( childTracker->isIndexTracker() );
					tracker = std::static_pointer_cast<GeneratorTracker>( childTracker );
				}
				else {
					tracker = std::make_shared<GeneratorTracker>( nameAndLocation, ctx, &currentTracker );
					currentTracker.addChild( tracker );
				}

				if( !ctx.completedCycle() && !tracker->isComplete() ) {
					if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
						tracker->moveNext();
					tracker->open();
				}

				return *tracker;
			}

			void moveNext() {
				m_index++;
				m_children.clear();
			}

			// TrackerBase interface
			bool isIndexTracker() const override { return true; }
			auto hasGenerator() const -> bool override {
				return !!m_generator;
			}
			void close() override {
				TrackerBase::close();
				if( m_runState == CompletedSuccessfully && m_index < m_generator->size()-1 )
					m_runState = Executing;
			}

			// IGeneratorTracker interface
			auto getGenerator() const -> GeneratorBasePtr const& override {
				return m_generator;
			}
			void setGenerator( GeneratorBasePtr&& generator ) override {
				m_generator = std::move( generator );
			}
			auto getIndex() const -> size_t override {
				return m_index;
			}
		};
		GeneratorTracker::~GeneratorTracker() {}
	}

	RunContext::RunContext(IConfigPtr const& _config, IStreamingReporterPtr&& reporter)
		:   m_runInfo(_config->name()),
		m_context(getCurrentMutableContext()),
		m_config(_config),
		m_reporter(std::move(reporter)),
		m_lastAssertionInfo{ StringRef(), SourceLineInfo("",0), StringRef(), ResultDisposition::Normal },
		m_includeSuccessfulResults( m_config->includeSuccessfulResults() || m_reporter->getPreferences().shouldReportAllAssertions )
	{
		m_context.setRunner(this);
		m_context.setConfig(m_config);
		m_context.setResultCapture(this);
		m_reporter->testRunStarting(m_runInfo);
	}

	RunContext::~RunContext() {
		m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
	}

	void RunContext::testGroupStarting(std::string const& testSpec, std::size_t groupIndex, std::size_t groupsCount) {
		m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
	}

	void RunContext::testGroupEnded(std::string const& testSpec, Totals const& totals, std::size_t groupIndex, std::size_t groupsCount) {
		m_reporter->testGroupEnded(TestGroupStats(GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
	}

	Totals RunContext::runTest(TestCase const& testCase) {
		Totals prevTotals = m_totals;

		std::string redirectedCout;
		std::string redirectedCerr;

		auto const& testInfo = testCase.getTestCaseInfo();

		m_reporter->testCaseStarting(testInfo);

		m_activeTestCase = &testCase;

		ITracker& rootTracker = m_trackerContext.startRun();
		assert(rootTracker.isSectionTracker());
		static_cast<SectionTracker&>(rootTracker).addInitialFilters(m_config->getSectionsToRun());
		do {
			m_trackerContext.startCycle();
			m_testCaseTracker = &SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
			runCurrentTest(redirectedCout, redirectedCerr);
		} while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

		Totals deltaTotals = m_totals.delta(prevTotals);
		if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
			deltaTotals.assertions.failed++;
			deltaTotals.testCases.passed--;
			deltaTotals.testCases.failed++;
		}
		m_totals.testCases += deltaTotals.testCases;
		m_reporter->testCaseEnded(TestCaseStats(testInfo,
			deltaTotals,
			redirectedCout,
			redirectedCerr,
			aborting()));

		m_activeTestCase = nullptr;
		m_testCaseTracker = nullptr;

		return deltaTotals;
	}

	IConfigPtr RunContext::config() const {
		return m_config;
	}

	IStreamingReporter& RunContext::reporter() const {
		return *m_reporter;
	}

	void RunContext::assertionEnded(AssertionResult const & result) {
		if (result.getResultType() == ResultWas::Ok) {
			m_totals.assertions.passed++;
			m_lastAssertionPassed = true;
		} else if (!result.isOk()) {
			m_lastAssertionPassed = false;
			if( m_activeTestCase->getTestCaseInfo().okToFail() )
				m_totals.assertions.failedButOk++;
			else
				m_totals.assertions.failed++;
		}
		else {
			m_lastAssertionPassed = true;
		}

		// We have no use for the return value (whether messages should be cleared), because messages were made scoped
		// and should be let to clear themselves out.
		static_cast<void>(m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));

		// Reset working state
		resetAssertionInfo();
		m_lastResult = result;
	}
	void RunContext::resetAssertionInfo() {
		m_lastAssertionInfo.macroName = StringRef();
		m_lastAssertionInfo.capturedExpression = "{Unknown expression after the reported line}"_sr;
	}

	bool RunContext::sectionStarted(SectionInfo const & sectionInfo, Counts & assertions) {
		ITracker& sectionTracker = SectionTracker::acquire(m_trackerContext, TestCaseTracking::NameAndLocation(sectionInfo.name, sectionInfo.lineInfo));
		if (!sectionTracker.isOpen())
			return false;
		m_activeSections.push_back(&sectionTracker);

		m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

		m_reporter->sectionStarting(sectionInfo);

		assertions = m_totals.assertions;

		return true;
	}
	auto RunContext::acquireGeneratorTracker( SourceLineInfo const& lineInfo ) -> IGeneratorTracker& {
		using namespace Generators;
		GeneratorTracker& tracker = GeneratorTracker::acquire( m_trackerContext, TestCaseTracking::NameAndLocation( "generator", lineInfo ) );
		assert( tracker.isOpen() );
		m_lastAssertionInfo.lineInfo = lineInfo;
		return tracker;
	}

	bool RunContext::testForMissingAssertions(Counts& assertions) {
		if (assertions.total() != 0)
			return false;
		if (!m_config->warnAboutMissingAssertions())
			return false;
		if (m_trackerContext.currentTracker().hasChildren())
			return false;
		m_totals.assertions.failed++;
		assertions.failed++;
		return true;
	}

	void RunContext::sectionEnded(SectionEndInfo const & endInfo) {
		Counts assertions = m_totals.assertions - endInfo.prevAssertions;
		bool missingAssertions = testForMissingAssertions(assertions);

		if (!m_activeSections.empty()) {
			m_activeSections.back()->close();
			m_activeSections.pop_back();
		}

		m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions, endInfo.durationInSeconds, missingAssertions));
		m_messages.clear();
	}

	void RunContext::sectionEndedEarly(SectionEndInfo const & endInfo) {
		if (m_unfinishedSections.empty())
			m_activeSections.back()->fail();
		else
			m_activeSections.back()->close();
		m_activeSections.pop_back();

		m_unfinishedSections.push_back(endInfo);
	}
	void RunContext::benchmarkStarting( BenchmarkInfo const& info ) {
		m_reporter->benchmarkStarting( info );
	}
	void RunContext::benchmarkEnded( BenchmarkStats const& stats ) {
		m_reporter->benchmarkEnded( stats );
	}

	void RunContext::pushScopedMessage(MessageInfo const & message) {
		m_messages.push_back(message);
	}

	void RunContext::popScopedMessage(MessageInfo const & message) {
		m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message), m_messages.end());
	}

	std::string RunContext::getCurrentTestName() const {
		return m_activeTestCase
			? m_activeTestCase->getTestCaseInfo().name
			: std::string();
	}

	const AssertionResult * RunContext::getLastResult() const {
		return &(*m_lastResult);
	}

	void RunContext::exceptionEarlyReported() {
		m_shouldReportUnexpected = false;
	}

	void RunContext::handleFatalErrorCondition( StringRef message ) {
		// First notify reporter that bad things happened
		m_reporter->fatalErrorEncountered(message);

		// Don't rebuild the result -- the stringification itself can cause more fatal errors
		// Instead, fake a result data.
		AssertionResultData tempResult( ResultWas::FatalErrorCondition, { false } );
		tempResult.message = message;
		AssertionResult result(m_lastAssertionInfo, tempResult);

		assertionEnded(result);

		handleUnfinishedSections();

		// Recreate section for test case (as we will lose the one that was in scope)
		auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
		SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);

		Counts assertions;
		assertions.failed = 1;
		SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
		m_reporter->sectionEnded(testCaseSectionStats);

		auto const& testInfo = m_activeTestCase->getTestCaseInfo();

		Totals deltaTotals;
		deltaTotals.testCases.failed = 1;
		deltaTotals.assertions.failed = 1;
		m_reporter->testCaseEnded(TestCaseStats(testInfo,
			deltaTotals,
			std::string(),
			std::string(),
			false));
		m_totals.testCases.failed++;
		testGroupEnded(std::string(), m_totals, 1, 1);
		m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
	}

	bool RunContext::lastAssertionPassed() {
		return m_lastAssertionPassed;
	}

	void RunContext::assertionPassed() {
		m_lastAssertionPassed = true;
		++m_totals.assertions.passed;
		resetAssertionInfo();
	}

	bool RunContext::aborting() const {
		return m_totals.assertions.failed >= static_cast<std::size_t>(m_config->abortAfter());
	}

	void RunContext::runCurrentTest(std::string & redirectedCout, std::string & redirectedCerr) {
		auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
		SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
		m_reporter->sectionStarting(testCaseSection);
		Counts prevAssertions = m_totals.assertions;
		double duration = 0;
		m_shouldReportUnexpected = true;
		m_lastAssertionInfo = { "TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(), ResultDisposition::Normal };

		seedRng(*m_config);

		Timer timer;
		CATCH_TRY {
			if (m_reporter->getPreferences().shouldRedirectStdOut) {
#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
				RedirectedStdOut redirectedStdOut;
				RedirectedStdErr redirectedStdErr;

				timer.start();
				invokeActiveTestCase();
				redirectedCout += redirectedStdOut.str();
				redirectedCerr += redirectedStdErr.str();
#else
				OutputRedirect r(redirectedCout, redirectedCerr);
				timer.start();
				invokeActiveTestCase();
#endif
			} else {
				timer.start();
				invokeActiveTestCase();
			}
		duration = timer.getElapsedSeconds();
		} CATCH_CATCH_ANON (TestFailureException&) {
			// This just means the test was aborted due to failure
		} CATCH_CATCH_ALL {
			// Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE assertions
			// are reported without translation at the point of origin.
			if( m_shouldReportUnexpected ) {
				AssertionReaction dummyReaction;
				handleUnexpectedInflightException( m_lastAssertionInfo, translateActiveException(), dummyReaction );
			}
		}
		Counts assertions = m_totals.assertions - prevAssertions;
		bool missingAssertions = testForMissingAssertions(assertions);

		m_testCaseTracker->close();
		handleUnfinishedSections();
		m_messages.clear();

		SectionStats testCaseSectionStats(testCaseSection, assertions, duration, missingAssertions);
		m_reporter->sectionEnded(testCaseSectionStats);
	}

	void RunContext::invokeActiveTestCase() {
		FatalConditionHandler fatalConditionHandler; // Handle signals
		m_activeTestCase->invoke();
		fatalConditionHandler.reset();
	}

	void RunContext::handleUnfinishedSections() {
		// If sections ended prematurely due to an exception we stored their
		// infos here so we can tear them down outside the unwind process.
		for (auto it = m_unfinishedSections.rbegin(),
			itEnd = m_unfinishedSections.rend();
			it != itEnd;
			++it)
			sectionEnded(*it);
		m_unfinishedSections.clear();
	}

	void RunContext::handleExpr(
		AssertionInfo const& info,
		ITransientExpression const& expr,
		AssertionReaction& reaction
	) {
		m_reporter->assertionStarting( info );

		bool negated = isFalseTest( info.resultDisposition );
		bool result = expr.getResult() != negated;

		if( result ) {
			if (!m_includeSuccessfulResults) {
				assertionPassed();
			}
			else {
				reportExpr(info, ResultWas::Ok, &expr, negated);
			}
		}
		else {
			reportExpr(info, ResultWas::ExpressionFailed, &expr, negated );
			populateReaction( reaction );
		}
	}
	void RunContext::reportExpr(
		AssertionInfo const &info,
		ResultWas::OfType resultType,
		ITransientExpression const *expr,
		bool negated ) {

		m_lastAssertionInfo = info;
		AssertionResultData data( resultType, LazyExpression( negated ) );

		AssertionResult assertionResult{ info, data };
		assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

		assertionEnded( assertionResult );
	}

	void RunContext::handleMessage(
		AssertionInfo const& info,
		ResultWas::OfType resultType,
		StringRef const& message,
		AssertionReaction& reaction
	) {
		m_reporter->assertionStarting( info );

		m_lastAssertionInfo = info;

		AssertionResultData data( resultType, LazyExpression( false ) );
		data.message = message;
		AssertionResult assertionResult{ m_lastAssertionInfo, data };
		assertionEnded( assertionResult );
		if( !assertionResult.isOk() )
			populateReaction( reaction );
	}
	void RunContext::handleUnexpectedExceptionNotThrown(
		AssertionInfo const& info,
		AssertionReaction& reaction
	) {
		handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
	}

	void RunContext::handleUnexpectedInflightException(
		AssertionInfo const& info,
		std::string const& message,
		AssertionReaction& reaction
	) {
		m_lastAssertionInfo = info;

		AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
		data.message = message;
		AssertionResult assertionResult{ info, data };
		assertionEnded( assertionResult );
		populateReaction( reaction );
	}

	void RunContext::populateReaction( AssertionReaction& reaction ) {
		reaction.shouldDebugBreak = m_config->shouldDebugBreak();
		reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition & ResultDisposition::Normal);
	}

	void RunContext::handleIncomplete(
		AssertionInfo const& info
	) {
		m_lastAssertionInfo = info;

		AssertionResultData data( ResultWas::ThrewException, LazyExpression( false ) );
		data.message = "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
		AssertionResult assertionResult{ info, data };
		assertionEnded( assertionResult );
	}
	void RunContext::handleNonExpr(
		AssertionInfo const &info,
		ResultWas::OfType resultType,
		AssertionReaction &reaction
	) {
		m_lastAssertionInfo = info;

		AssertionResultData data( resultType, LazyExpression( false ) );
		AssertionResult assertionResult{ info, data };
		assertionEnded( assertionResult );

		if( !assertionResult.isOk() )
			populateReaction( reaction );
	}

	IResultCapture& getResultCapture() {
		if (auto* capture = getCurrentContext().getResultCapture())
			return *capture;
		else
			CATCH_INTERNAL_ERROR("No result capture instance");
	}
}
// end catch_run_context.cpp
// start catch_section.cpp

namespace Catch {

	Section::Section( SectionInfo const& info )
		:   m_info( info ),
		m_sectionIncluded( getResultCapture().sectionStarted( m_info, m_assertions ) )
	{
		m_timer.start();
	}

	Section::~Section() {
		if( m_sectionIncluded ) {
			SectionEndInfo endInfo{ m_info, m_assertions, m_timer.getElapsedSeconds() };
			if( uncaught_exceptions() )
				getResultCapture().sectionEndedEarly( endInfo );
			else
				getResultCapture().sectionEnded( endInfo );
		}
	}

	// This indicates whether the section should be executed or not
	Section::operator bool() const {
		return m_sectionIncluded;
	}

} // end namespace Catch
  // end catch_section.cpp
  // start catch_section_info.cpp

namespace Catch {

	SectionInfo::SectionInfo
	(   SourceLineInfo const& _lineInfo,
		std::string const& _name )
		:   name( _name ),
		lineInfo( _lineInfo )
	{}

} // end namespace Catch
  // end catch_section_info.cpp
  // start catch_session.cpp

  // start catch_session.h

#include <memory>

namespace Catch {

	class Session : NonCopyable {
	public:

		Session();
		~Session() override;

		void showHelp() const;
		void libIdentify();

		int applyCommandLine( int argc, char const * const * argv );
#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
		int applyCommandLine( int argc, wchar_t const * const * argv );
#endif

		void useConfigData( ConfigData const& configData );

		template<typename CharT>
		int run(int argc, CharT const * const argv[]) {
			if (m_startupExceptions)
				return 1;
			int returnCode = applyCommandLine(argc, argv);
			if (returnCode == 0)
				returnCode = run();
			return returnCode;
		}

		int run();

		clara::Parser const& cli() const;
		void cli( clara::Parser const& newParser );
		ConfigData& configData();
		Config& config();
	private:
		int runInternal();

		clara::Parser m_cli;
		ConfigData m_configData;
		std::shared_ptr<Config> m_config;
		bool m_startupExceptions = false;
	};

} // end namespace Catch

  // end catch_session.h
  // start catch_version.h

#include <iosfwd>

namespace Catch {

	// Versioning information
	struct Version {
		Version( Version const& ) = delete;
		Version& operator=( Version const& ) = delete;
		Version(    unsigned int _majorVersion,
			unsigned int _minorVersion,
			unsigned int _patchNumber,
			char const * const _branchName,
			unsigned int _buildNumber );

		unsigned int const majorVersion;
		unsigned int const minorVersion;
		unsigned int const patchNumber;

		// buildNumber is only used if branchName is not null
		char const * const branchName;
		unsigned int const buildNumber;

		friend std::ostream& operator << ( std::ostream& os, Version const& version );
	};

	Version const& libraryVersion();
}

// end catch_version.h
#include <cstdlib>
#include <iomanip>

namespace Catch {

	namespace {
		const int MaxExitCode = 255;

		IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
			auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
			CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");

			return reporter;
		}

		IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
			if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()) {
				return createReporter(config->getReporterName(), config);
			}

			auto multi = std::unique_ptr<ListeningReporter>(new ListeningReporter);

			auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
			for (auto const& listener : listeners) {
				multi->addListener(listener->create(Catch::ReporterConfig(config)));
			}
			multi->addReporter(createReporter(config->getReporterName(), config));
			return std::move(multi);
		}

		Catch::Totals runTests(std::shared_ptr<Config> const& config) {
			auto reporter = makeReporter(config);

			RunContext context(config, std::move(reporter));

			Totals totals;

			context.testGroupStarting(config->name(), 1, 1);

			TestSpec testSpec = config->testSpec();

			auto const& allTestCases = getAllTestCasesSorted(*config);
			for (auto const& testCase : allTestCases) {
				if (!context.aborting() && matchTest(testCase, testSpec, *config))
					totals += context.runTest(testCase);
				else
					context.reporter().skipTest(testCase);
			}

			if (config->warnAboutNoTests() && totals.testCases.total() == 0) {
				ReusableStringStream testConfig;

				bool first = true;
				for (const auto& input : config->getTestsOrTags()) {
					if (!first) { testConfig << ' '; }
					first = false;
					testConfig << input;
				}

				context.reporter().noMatchingTestCases(testConfig.str());
				totals.error = -1;
			}

			context.testGroupEnded(config->name(), totals, 1, 1);
			return totals;
		}

		void applyFilenamesAsTags(Catch::IConfig const& config) {
			auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
			for (auto& testCase : tests) {
				auto tags = testCase.tags;

				std::string filename = testCase.lineInfo.file;
				auto lastSlash = filename.find_last_of("\\/");
				if (lastSlash != std::string::npos) {
					filename.erase(0, lastSlash);
					filename[0] = '#';
				}

				auto lastDot = filename.find_last_of('.');
				if (lastDot != std::string::npos) {
					filename.erase(lastDot);
				}

				tags.push_back(std::move(filename));
				setTags(testCase, tags);
			}
		}

	} // anon namespace

	Session::Session() {
		static bool alreadyInstantiated = false;
		if( alreadyInstantiated ) {
			CATCH_TRY { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
			CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
		}

		// There cannot be exceptions at startup in no-exception mode.
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
		const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
		if ( !exceptions.empty() ) {
			m_startupExceptions = true;
			Colour colourGuard( Colour::Red );
			Catch::cerr() << "Errors occurred during startup!" << '\n';
			// iterate over all exceptions and notify user
			for ( const auto& ex_ptr : exceptions ) {
				try {
					std::rethrow_exception(ex_ptr);
				} catch ( std::exception const& ex ) {
					Catch::cerr() << Column( ex.what() ).indent(2) << '\n';
				}
			}
		}
#endif

		alreadyInstantiated = true;
		m_cli = makeCommandLineParser( m_configData );
	}
	Session::~Session() {
		Catch::cleanUp();
	}

	void Session::showHelp() const {
		Catch::cout()
			<< "\nCatch v" << libraryVersion() << "\n"
			<< m_cli << std::endl
			<< "For more detailed usage please see the project docs\n" << std::endl;
	}
	void Session::libIdentify() {
		Catch::cout()
			<< std::left << std::setw(16) << "description: " << "A Catch test executable\n"
			<< std::left << std::setw(16) << "category: " << "testframework\n"
			<< std::left << std::setw(16) << "framework: " << "Catch Test\n"
			<< std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
	}

	int Session::applyCommandLine( int argc, char const * const * argv ) {
		if( m_startupExceptions )
			return 1;

		auto result = m_cli.parse( clara::Args( argc, argv ) );
		if( !result ) {
			Catch::cerr()
				<< Colour( Colour::Red )
				<< "\nError(s) in input:\n"
				<< Column( result.errorMessage() ).indent( 2 )
				<< "\n\n";
			Catch::cerr() << "Run with -? for usage\n" << std::endl;
			return MaxExitCode;
		}

		if( m_configData.showHelp )
			showHelp();
		if( m_configData.libIdentify )
			libIdentify();
		m_config.reset();
		return 0;
	}

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
	int Session::applyCommandLine( int argc, wchar_t const * const * argv ) {

		char **utf8Argv = new char *[ argc ];

		for ( int i = 0; i < argc; ++i ) {
			int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );

			utf8Argv[ i ] = new char[ bufSize ];

			WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
		}

		int returnCode = applyCommandLine( argc, utf8Argv );

		for ( int i = 0; i < argc; ++i )
			delete [] utf8Argv[ i ];

		delete [] utf8Argv;

		return returnCode;
	}
#endif

	void Session::useConfigData( ConfigData const& configData ) {
		m_configData = configData;
		m_config.reset();
	}

	int Session::run() {
		if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
			Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
			static_cast<void>(std::getchar());
		}
		int exitCode = runInternal();
		if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
			Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
			static_cast<void>(std::getchar());
		}
		return exitCode;
	}

	clara::Parser const& Session::cli() const {
		return m_cli;
	}
	void Session::cli( clara::Parser const& newParser ) {
		m_cli = newParser;
	}
	ConfigData& Session::configData() {
		return m_configData;
	}
	Config& Session::config() {
		if( !m_config )
			m_config = std::make_shared<Config>( m_configData );
		return *m_config;
	}

	int Session::runInternal() {
		if( m_startupExceptions )
			return 1;

		if (m_configData.showHelp || m_configData.libIdentify) {
			return 0;
		}

		CATCH_TRY {
			config(); // Force config to be constructed

		seedRng( *m_config );

		if( m_configData.filenamesAsTags )
			applyFilenamesAsTags( *m_config );

		// Handle list request
		if( Option<std::size_t> listed = list( config() ) )
			return static_cast<int>( *listed );

		auto totals = runTests( m_config );
		// Note that on unices only the lower 8 bits are usually used, clamping
		// the return value to 255 prevents false negative when some multiple
		// of 256 tests has failed
		return (std::min) (MaxExitCode, (std::max) (totals.error, static_cast<int>(totals.assertions.failed)));
		}
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
			catch( std::exception& ex ) {
			Catch::cerr() << ex.what() << std::endl;
			return MaxExitCode;
		}
#endif
	}

} // end namespace Catch
  // end catch_session.cpp
  // start catch_singletons.cpp

#include <vector>

namespace Catch {

	namespace {
		static auto getSingletons() -> std::vector<ISingleton*>*& {
			static std::vector<ISingleton*>* g_singletons = nullptr;
			if( !g_singletons )
				g_singletons = new std::vector<ISingleton*>();
			return g_singletons;
		}
	}

	ISingleton::~ISingleton() {}

	void addSingleton(ISingleton* singleton ) {
		getSingletons()->push_back( singleton );
	}
	void cleanupSingletons() {
		auto& singletons = getSingletons();
		for( auto singleton : *singletons )
			delete singleton;
		delete singletons;
		singletons = nullptr;
	}

} // namespace Catch
  // end catch_singletons.cpp
  // start catch_startup_exception_registry.cpp

namespace Catch {
	void StartupExceptionRegistry::add( std::exception_ptr const& exception ) noexcept {
		CATCH_TRY {
			m_exceptions.push_back(exception);
		} CATCH_CATCH_ALL {
			// If we run out of memory during start-up there's really not a lot more we can do about it
			std::terminate();
		}
	}

	std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions() const noexcept {
		return m_exceptions;
	}

} // end namespace Catch
  // end catch_startup_exception_registry.cpp
  // start catch_stream.cpp

#include <cstdio>
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <memory>

namespace Catch {

	Catch::IStream::~IStream() = default;

	namespace detail { namespace {
		template<typename WriterF, std::size_t bufferSize=256>
		class StreamBufImpl : public std::streambuf {
			char data[bufferSize];
			WriterF m_writer;

		public:
			StreamBufImpl() {
				setp( data, data + sizeof(data) );
			}

			~StreamBufImpl() noexcept {
				StreamBufImpl::sync();
			}

		private:
			int overflow( int c ) override {
				sync();

				if( c != EOF ) {
					if( pbase() == epptr() )
						m_writer( std::string( 1, static_cast<char>( c ) ) );
					else
						sputc( static_cast<char>( c ) );
				}
				return 0;
			}

			int sync() override {
				if( pbase() != pptr() ) {
					m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
					setp( pbase(), epptr() );
				}
				return 0;
			}
		};

		///////////////////////////////////////////////////////////////////////////

		struct OutputDebugWriter {

			void operator()( std::string const&str ) {
				writeToDebugConsole( str );
			}
		};

		///////////////////////////////////////////////////////////////////////////

		class FileStream : public IStream {
			mutable std::ofstream m_ofs;
		public:
			FileStream( StringRef filename ) {
				m_ofs.open( filename.c_str() );
				CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << "'" );
			}
			~FileStream() override = default;
		public: // IStream
			std::ostream& stream() const override {
				return m_ofs;
			}
		};

		///////////////////////////////////////////////////////////////////////////

		class CoutStream : public IStream {
			mutable std::ostream m_os;
		public:
			// Store the streambuf from cout up-front because
			// cout may get redirected when running tests
			CoutStream() : m_os( Catch::cout().rdbuf() ) {}
			~CoutStream() override = default;

		public: // IStream
			std::ostream& stream() const override { return m_os; }
		};

		///////////////////////////////////////////////////////////////////////////

		class DebugOutStream : public IStream {
			std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
			mutable std::ostream m_os;
		public:
			DebugOutStream()
				:   m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
				m_os( m_streamBuf.get() )
			{}

			~DebugOutStream() override = default;

		public: // IStream
			std::ostream& stream() const override { return m_os; }
		};

	}} // namespace anon::detail

	   ///////////////////////////////////////////////////////////////////////////

	auto makeStream( StringRef const &filename ) -> IStream const* {
		if( filename.empty() )
			return new detail::CoutStream();
		else if( filename[0] == '%' ) {
			if( filename == "%debug" )
				return new detail::DebugOutStream();
			else
				CATCH_ERROR( "Unrecognised stream: '" << filename << "'" );
		}
		else
			return new detail::FileStream( filename );
	}

	// This class encapsulates the idea of a pool of ostringstreams that can be reused.
	struct StringStreams {
		std::vector<std::unique_ptr<std::ostringstream>> m_streams;
		std::vector<std::size_t> m_unused;
		std::ostringstream m_referenceStream; // Used for copy state/ flags from

		auto add() -> std::size_t {
			if( m_unused.empty() ) {
				m_streams.push_back( std::unique_ptr<std::ostringstream>( new std::ostringstream ) );
				return m_streams.size()-1;
			}
			else {
				auto index = m_unused.back();
				m_unused.pop_back();
				return index;
			}
		}

		void release( std::size_t index ) {
			m_streams[index]->copyfmt( m_referenceStream ); // Restore initial flags and other state
			m_unused.push_back(index);
		}
	};

	ReusableStringStream::ReusableStringStream()
		:   m_index( Singleton<StringStreams>::getMutable().add() ),
		m_oss( Singleton<StringStreams>::getMutable().m_streams[m_index].get() )
	{}

	ReusableStringStream::~ReusableStringStream() {
		static_cast<std::ostringstream*>( m_oss )->str("");
		m_oss->clear();
		Singleton<StringStreams>::getMutable().release( m_index );
	}

	auto ReusableStringStream::str() const -> std::string {
		return static_cast<std::ostringstream*>( m_oss )->str();
	}

	///////////////////////////////////////////////////////////////////////////

#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
	std::ostream& cout() { return std::cout; }
	std::ostream& cerr() { return std::cerr; }
	std::ostream& clog() { return std::clog; }
#endif
}
// end catch_stream.cpp
// start catch_string_manip.cpp

#include <algorithm>
#include <ostream>
#include <cstring>
#include <cctype>

namespace Catch {

	namespace {
		char toLowerCh(char c) {
			return static_cast<char>( std::tolower( c ) );
		}
	}

	bool startsWith( std::string const& s, std::string const& prefix ) {
		return s.size() >= prefix.size() && std::equal(prefix.begin(), prefix.end(), s.begin());
	}
	bool startsWith( std::string const& s, char prefix ) {
		return !s.empty() && s[0] == prefix;
	}
	bool endsWith( std::string const& s, std::string const& suffix ) {
		return s.size() >= suffix.size() && std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
	}
	bool endsWith( std::string const& s, char suffix ) {
		return !s.empty() && s[s.size()-1] == suffix;
	}
	bool contains( std::string const& s, std::string const& infix ) {
		return s.find( infix ) != std::string::npos;
	}
	void toLowerInPlace( std::string& s ) {
		std::transform( s.begin(), s.end(), s.begin(), toLowerCh );
	}
	std::string toLower( std::string const& s ) {
		std::string lc = s;
		toLowerInPlace( lc );
		return lc;
	}
	std::string trim( std::string const& str ) {
		static char const* whitespaceChars = "\n\r\t ";
		std::string::size_type start = str.find_first_not_of( whitespaceChars );
		std::string::size_type end = str.find_last_not_of( whitespaceChars );

		return start != std::string::npos ? str.substr( start, 1+end-start ) : std::string();
	}

	bool replaceInPlace( std::string& str, std::string const& replaceThis, std::string const& withThis ) {
		bool replaced = false;
		std::size_t i = str.find( replaceThis );
		while( i != std::string::npos ) {
			replaced = true;
			str = str.substr( 0, i ) + withThis + str.substr( i+replaceThis.size() );
			if( i < str.size()-withThis.size() )
				i = str.find( replaceThis, i+withThis.size() );
			else
				i = std::string::npos;
		}
		return replaced;
	}

	pluralise::pluralise( std::size_t count, std::string const& label )
		:   m_count( count ),
		m_label( label )
	{}

	std::ostream& operator << ( std::ostream& os, pluralise const& pluraliser ) {
		os << pluraliser.m_count << ' ' << pluraliser.m_label;
		if( pluraliser.m_count != 1 )
			os << 's';
		return os;
	}

}
// end catch_string_manip.cpp
// start catch_stringref.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

#include <ostream>
#include <cstring>
#include <cstdint>

namespace {
	const uint32_t byte_2_lead = 0xC0;
	const uint32_t byte_3_lead = 0xE0;
	const uint32_t byte_4_lead = 0xF0;
}

namespace Catch {
	StringRef::StringRef( char const* rawChars ) noexcept
		: StringRef( rawChars, static_cast<StringRef::size_type>(std::strlen(rawChars) ) )
	{}

	StringRef::operator std::string() const {
		return std::string( m_start, m_size );
	}

	void StringRef::swap( StringRef& other ) noexcept {
		std::swap( m_start, other.m_start );
		std::swap( m_size, other.m_size );
		std::swap( m_data, other.m_data );
	}

	auto StringRef::c_str() const -> char const* {
		if( isSubstring() )
			const_cast<StringRef*>( this )->takeOwnership();
		return m_start;
	}
	auto StringRef::currentData() const noexcept -> char const* {
		return m_start;
	}

	auto StringRef::isOwned() const noexcept -> bool {
		return m_data != nullptr;
	}
	auto StringRef::isSubstring() const noexcept -> bool {
		return m_start[m_size] != '\0';
	}

	void StringRef::takeOwnership() {
		if( !isOwned() ) {
			m_data = new char[m_size+1];
			memcpy( m_data, m_start, m_size );
			m_data[m_size] = '\0';
			m_start = m_data;
		}
	}
	auto StringRef::substr( size_type start, size_type size ) const noexcept -> StringRef {
		if( start < m_size )
			return StringRef( m_start+start, size );
		else
			return StringRef();
	}
	auto StringRef::operator == ( StringRef const& other ) const noexcept -> bool {
		return
			size() == other.size() &&
			(std::strncmp( m_start, other.m_start, size() ) == 0);
	}
	auto StringRef::operator != ( StringRef const& other ) const noexcept -> bool {
		return !operator==( other );
	}

	auto StringRef::operator[](size_type index) const noexcept -> char {
		return m_start[index];
	}

	auto StringRef::numberOfCharacters() const noexcept -> size_type {
		size_type noChars = m_size;
		// Make adjustments for uft encodings
		for( size_type i=0; i < m_size; ++i ) {
			char c = m_start[i];
			if( ( c & byte_2_lead ) == byte_2_lead ) {
				noChars--;
				if (( c & byte_3_lead ) == byte_3_lead )
					noChars--;
				if( ( c & byte_4_lead ) == byte_4_lead )
					noChars--;
			}
		}
		return noChars;
	}

	auto operator + ( StringRef const& lhs, StringRef const& rhs ) -> std::string {
		std::string str;
		str.reserve( lhs.size() + rhs.size() );
		str += lhs;
		str += rhs;
		return str;
	}
	auto operator + ( StringRef const& lhs, const char* rhs ) -> std::string {
		return std::string( lhs ) + std::string( rhs );
	}
	auto operator + ( char const* lhs, StringRef const& rhs ) -> std::string {
		return std::string( lhs ) + std::string( rhs );
	}

	auto operator << ( std::ostream& os, StringRef const& str ) -> std::ostream& {
		return os.write(str.currentData(), str.size());
	}

	auto operator+=( std::string& lhs, StringRef const& rhs ) -> std::string& {
		lhs.append(rhs.currentData(), rhs.size());
		return lhs;
	}

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif
  // end catch_stringref.cpp
  // start catch_tag_alias.cpp

namespace Catch {
	TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo): tag(_tag), lineInfo(_lineInfo) {}
}
// end catch_tag_alias.cpp
// start catch_tag_alias_autoregistrar.cpp

namespace Catch {

	RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
		CATCH_TRY {
			getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
		} CATCH_CATCH_ALL {
			// Do not throw when constructing global objects, instead register the exception to be processed later
			getMutableRegistryHub().registerStartupException();
		}
	}

}
// end catch_tag_alias_autoregistrar.cpp
// start catch_tag_alias_registry.cpp

#include <sstream>

namespace Catch {

	TagAliasRegistry::~TagAliasRegistry() {}

	TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
		auto it = m_registry.find( alias );
		if( it != m_registry.end() )
			return &(it->second);
		else
			return nullptr;
	}

	std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {
		std::string expandedTestSpec = unexpandedTestSpec;
		for( auto const& registryKvp : m_registry ) {
			std::size_t pos = expandedTestSpec.find( registryKvp.first );
			if( pos != std::string::npos ) {
				expandedTestSpec =  expandedTestSpec.substr( 0, pos ) +
					registryKvp.second.tag +
					expandedTestSpec.substr( pos + registryKvp.first.size() );
			}
		}
		return expandedTestSpec;
	}

	void TagAliasRegistry::add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo ) {
		CATCH_ENFORCE( startsWith(alias, "[@") && endsWith(alias, ']'),
			"error: tag alias, '" << alias << "' is not of the form [@alias name].\n" << lineInfo );

		CATCH_ENFORCE( m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
			"error: tag alias, '" << alias << "' already registered.\n"
			<< "\tFirst seen at: " << find(alias)->lineInfo << "\n"
			<< "\tRedefined at: " << lineInfo );
	}

	ITagAliasRegistry::~ITagAliasRegistry() {}

	ITagAliasRegistry const& ITagAliasRegistry::get() {
		return getRegistryHub().getTagAliasRegistry();
	}

} // end namespace Catch
  // end catch_tag_alias_registry.cpp
  // start catch_test_case_info.cpp

#include <cctype>
#include <exception>
#include <algorithm>
#include <sstream>

namespace Catch {

	namespace {
		TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
			if( startsWith( tag, '.' ) ||
				tag == "!hide" )
				return TestCaseInfo::IsHidden;
			else if( tag == "!throws" )
				return TestCaseInfo::Throws;
			else if( tag == "!shouldfail" )
				return TestCaseInfo::ShouldFail;
			else if( tag == "!mayfail" )
				return TestCaseInfo::MayFail;
			else if( tag == "!nonportable" )
				return TestCaseInfo::NonPortable;
			else if( tag == "!benchmark" )
				return static_cast<TestCaseInfo::SpecialProperties>( TestCaseInfo::Benchmark | TestCaseInfo::IsHidden );
			else
				return TestCaseInfo::None;
		}
		bool isReservedTag( std::string const& tag ) {
			return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum( static_cast<unsigned char>(tag[0]) );
		}
		void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
			CATCH_ENFORCE( !isReservedTag(tag),
				"Tag name: [" << tag << "] is not allowed.\n"
				<< "Tag names starting with non alpha-numeric characters are reserved\n"
				<< _lineInfo );
		}
	}

	TestCase makeTestCase(  ITestInvoker* _testCase,
		std::string const& _className,
		NameAndTags const& nameAndTags,
		SourceLineInfo const& _lineInfo )
	{
		bool isHidden = false;

		// Parse out tags
		std::vector<std::string> tags;
		std::string desc, tag;
		bool inTag = false;
		std::string _descOrTags = nameAndTags.tags;
		for (char c : _descOrTags) {
			if( !inTag ) {
				if( c == '[' )
					inTag = true;
				else
					desc += c;
			}
			else {
				if( c == ']' ) {
					TestCaseInfo::SpecialProperties prop = parseSpecialTag( tag );
					if( ( prop & TestCaseInfo::IsHidden ) != 0 )
						isHidden = true;
					else if( prop == TestCaseInfo::None )
						enforceNotReservedTag( tag, _lineInfo );

					tags.push_back( tag );
					tag.clear();
					inTag = false;
				}
				else
					tag += c;
			}
		}
		if( isHidden ) {
			tags.push_back( "." );
		}

		TestCaseInfo info( nameAndTags.name, _className, desc, tags, _lineInfo );
		return TestCase( _testCase, std::move(info) );
	}

	void setTags( TestCaseInfo& testCaseInfo, std::vector<std::string> tags ) {
		std::sort(begin(tags), end(tags));
		tags.erase(std::unique(begin(tags), end(tags)), end(tags));
		testCaseInfo.lcaseTags.clear();

		for( auto const& tag : tags ) {
			std::string lcaseTag = toLower( tag );
			testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>( testCaseInfo.properties | parseSpecialTag( lcaseTag ) );
			testCaseInfo.lcaseTags.push_back( lcaseTag );
		}
		testCaseInfo.tags = std::move(tags);
	}

	TestCaseInfo::TestCaseInfo( std::string const& _name,
		std::string const& _className,
		std::string const& _description,
		std::vector<std::string> const& _tags,
		SourceLineInfo const& _lineInfo )
		:   name( _name ),
		className( _className ),
		description( _description ),
		lineInfo( _lineInfo ),
		properties( None )
	{
		setTags( *this, _tags );
	}

	bool TestCaseInfo::isHidden() const {
		return ( properties & IsHidden ) != 0;
	}
	bool TestCaseInfo::throws() const {
		return ( properties & Throws ) != 0;
	}
	bool TestCaseInfo::okToFail() const {
		return ( properties & (ShouldFail | MayFail ) ) != 0;
	}
	bool TestCaseInfo::expectedToFail() const {
		return ( properties & (ShouldFail ) ) != 0;
	}

	std::string TestCaseInfo::tagsAsString() const {
		std::string ret;
		// '[' and ']' per tag
		std::size_t full_size = 2 * tags.size();
		for (const auto& tag : tags) {
			full_size += tag.size();
		}
		ret.reserve(full_size);
		for (const auto& tag : tags) {
			ret.push_back('[');
			ret.append(tag);
			ret.push_back(']');
		}

		return ret;
	}

	TestCase::TestCase( ITestInvoker* testCase, TestCaseInfo&& info ) : TestCaseInfo( std::move(info) ), test( testCase ) {}

	TestCase TestCase::withName( std::string const& _newName ) const {
		TestCase other( *this );
		other.name = _newName;
		return other;
	}

	void TestCase::invoke() const {
		test->invoke();
	}

	bool TestCase::operator == ( TestCase const& other ) const {
		return  test.get() == other.test.get() &&
			name == other.name &&
			className == other.className;
	}

	bool TestCase::operator < ( TestCase const& other ) const {
		return name < other.name;
	}

	TestCaseInfo const& TestCase::getTestCaseInfo() const
	{
		return *this;
	}

} // end namespace Catch
  // end catch_test_case_info.cpp
  // start catch_test_case_registry_impl.cpp

#include <sstream>

namespace Catch {

	std::vector<TestCase> sortTests( IConfig const& config, std::vector<TestCase> const& unsortedTestCases ) {

		std::vector<TestCase> sorted = unsortedTestCases;

		switch( config.runOrder() ) {
		case RunTests::InLexicographicalOrder:
			std::sort( sorted.begin(), sorted.end() );
			break;
		case RunTests::InRandomOrder:
			seedRng( config );
			std::shuffle( sorted.begin(), sorted.end(), rng() );
			break;
		case RunTests::InDeclarationOrder:
			// already in declaration order
			break;
		}
		return sorted;
	}
	bool matchTest( TestCase const& testCase, TestSpec const& testSpec, IConfig const& config ) {
		return testSpec.matches( testCase ) && ( config.allowThrows() || !testCase.throws() );
	}

	void enforceNoDuplicateTestCases( std::vector<TestCase> const& functions ) {
		std::set<TestCase> seenFunctions;
		for( auto const& function : functions ) {
			auto prev = seenFunctions.insert( function );
			CATCH_ENFORCE( prev.second,
				"error: TEST_CASE( \"" << function.name << "\" ) already defined.\n"
				<< "\tFirst seen at " << prev.first->getTestCaseInfo().lineInfo << "\n"
				<< "\tRedefined at " << function.getTestCaseInfo().lineInfo );
		}
	}

	std::vector<TestCase> filterTests( std::vector<TestCase> const& testCases, TestSpec const& testSpec, IConfig const& config ) {
		std::vector<TestCase> filtered;
		filtered.reserve( testCases.size() );
		for( auto const& testCase : testCases )
			if( matchTest( testCase, testSpec, config ) )
				filtered.push_back( testCase );
		return filtered;
	}
	std::vector<TestCase> const& getAllTestCasesSorted( IConfig const& config ) {
		return getRegistryHub().getTestCaseRegistry().getAllTestsSorted( config );
	}

	void TestRegistry::registerTest( TestCase const& testCase ) {
		std::string name = testCase.getTestCaseInfo().name;
		if( name.empty() ) {
			ReusableStringStream rss;
			rss << "Anonymous test case " << ++m_unnamedCount;
			return registerTest( testCase.withName( rss.str() ) );
		}
		m_functions.push_back( testCase );
	}

	std::vector<TestCase> const& TestRegistry::getAllTests() const {
		return m_functions;
	}
	std::vector<TestCase> const& TestRegistry::getAllTestsSorted( IConfig const& config ) const {
		if( m_sortedFunctions.empty() )
			enforceNoDuplicateTestCases( m_functions );

		if(  m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty() ) {
			m_sortedFunctions = sortTests( config, m_functions );
			m_currentSortOrder = config.runOrder();
		}
		return m_sortedFunctions;
	}

	///////////////////////////////////////////////////////////////////////////
	TestInvokerAsFunction::TestInvokerAsFunction( void(*testAsFunction)() ) noexcept : m_testAsFunction( testAsFunction ) {}

	void TestInvokerAsFunction::invoke() const {
		m_testAsFunction();
	}

	std::string extractClassName( StringRef const& classOrQualifiedMethodName ) {
		std::string className = classOrQualifiedMethodName;
		if( startsWith( className, '&' ) )
		{
			std::size_t lastColons = className.rfind( "::" );
			std::size_t penultimateColons = className.rfind( "::", lastColons-1 );
			if( penultimateColons == std::string::npos )
				penultimateColons = 1;
			className = className.substr( penultimateColons, lastColons-penultimateColons );
		}
		return className;
	}

} // end namespace Catch
  // end catch_test_case_registry_impl.cpp
  // start catch_test_case_tracker.cpp

#include <algorithm>
#include <cassert>
#include <stdexcept>
#include <memory>
#include <sstream>

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch {
	namespace TestCaseTracking {

		NameAndLocation::NameAndLocation( std::string const& _name, SourceLineInfo const& _location )
			:   name( _name ),
			location( _location )
		{}

		ITracker::~ITracker() = default;

		TrackerContext& TrackerContext::instance() {
			static TrackerContext s_instance;
			return s_instance;
		}

		ITracker& TrackerContext::startRun() {
			m_rootTracker = std::make_shared<SectionTracker>( NameAndLocation( "{root}", CATCH_INTERNAL_LINEINFO ), *this, nullptr );
			m_currentTracker = nullptr;
			m_runState = Executing;
			return *m_rootTracker;
		}

		void TrackerContext::endRun() {
			m_rootTracker.reset();
			m_currentTracker = nullptr;
			m_runState = NotStarted;
		}

		void TrackerContext::startCycle() {
			m_currentTracker = m_rootTracker.get();
			m_runState = Executing;
		}
		void TrackerContext::completeCycle() {
			m_runState = CompletedCycle;
		}

		bool TrackerContext::completedCycle() const {
			return m_runState == CompletedCycle;
		}
		ITracker& TrackerContext::currentTracker() {
			return *m_currentTracker;
		}
		void TrackerContext::setCurrentTracker( ITracker* tracker ) {
			m_currentTracker = tracker;
		}

		TrackerBase::TrackerBase( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
			:   m_nameAndLocation( nameAndLocation ),
			m_ctx( ctx ),
			m_parent( parent )
		{}

		NameAndLocation const& TrackerBase::nameAndLocation() const {
			return m_nameAndLocation;
		}
		bool TrackerBase::isComplete() const {
			return m_runState == CompletedSuccessfully || m_runState == Failed;
		}
		bool TrackerBase::isSuccessfullyCompleted() const {
			return m_runState == CompletedSuccessfully;
		}
		bool TrackerBase::isOpen() const {
			return m_runState != NotStarted && !isComplete();
		}
		bool TrackerBase::hasChildren() const {
			return !m_children.empty();
		}

		void TrackerBase::addChild( ITrackerPtr const& child ) {
			m_children.push_back( child );
		}

		ITrackerPtr TrackerBase::findChild( NameAndLocation const& nameAndLocation ) {
			auto it = std::find_if( m_children.begin(), m_children.end(),
				[&nameAndLocation]( ITrackerPtr const& tracker ){
				return
					tracker->nameAndLocation().location == nameAndLocation.location &&
					tracker->nameAndLocation().name == nameAndLocation.name;
			} );
			return( it != m_children.end() )
				? *it
				: nullptr;
		}
		ITracker& TrackerBase::parent() {
			assert( m_parent ); // Should always be non-null except for root
			return *m_parent;
		}

		void TrackerBase::openChild() {
			if( m_runState != ExecutingChildren ) {
				m_runState = ExecutingChildren;
				if( m_parent )
					m_parent->openChild();
			}
		}

		bool TrackerBase::isSectionTracker() const { return false; }
		bool TrackerBase::isIndexTracker() const { return false; }

		void TrackerBase::open() {
			m_runState = Executing;
			moveToThis();
			if( m_parent )
				m_parent->openChild();
		}

		void TrackerBase::close() {

			// Close any still open children (e.g. generators)
			while( &m_ctx.currentTracker() != this )
				m_ctx.currentTracker().close();

			switch( m_runState ) {
			case NeedsAnotherRun:
				break;

			case Executing:
				m_runState = CompletedSuccessfully;
				break;
			case ExecutingChildren:
				if( m_children.empty() || m_children.back()->isComplete() )
					m_runState = CompletedSuccessfully;
				break;

			case NotStarted:
			case CompletedSuccessfully:
			case Failed:
				CATCH_INTERNAL_ERROR( "Illogical state: " << m_runState );

			default:
				CATCH_INTERNAL_ERROR( "Unknown state: " << m_runState );
			}
			moveToParent();
			m_ctx.completeCycle();
		}
		void TrackerBase::fail() {
			m_runState = Failed;
			if( m_parent )
				m_parent->markAsNeedingAnotherRun();
			moveToParent();
			m_ctx.completeCycle();
		}
		void TrackerBase::markAsNeedingAnotherRun() {
			m_runState = NeedsAnotherRun;
		}

		void TrackerBase::moveToParent() {
			assert( m_parent );
			m_ctx.setCurrentTracker( m_parent );
		}
		void TrackerBase::moveToThis() {
			m_ctx.setCurrentTracker( this );
		}

		SectionTracker::SectionTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent )
			:   TrackerBase( nameAndLocation, ctx, parent )
		{
			if( parent ) {
				while( !parent->isSectionTracker() )
					parent = &parent->parent();

				SectionTracker& parentSection = static_cast<SectionTracker&>( *parent );
				addNextFilters( parentSection.m_filters );
			}
		}

		bool SectionTracker::isSectionTracker() const { return true; }

		SectionTracker& SectionTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation ) {
			std::shared_ptr<SectionTracker> section;

			ITracker& currentTracker = ctx.currentTracker();
			if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
				assert( childTracker );
				assert( childTracker->isSectionTracker() );
				section = std::static_pointer_cast<SectionTracker>( childTracker );
			}
			else {
				section = std::make_shared<SectionTracker>( nameAndLocation, ctx, &currentTracker );
				currentTracker.addChild( section );
			}
			if( !ctx.completedCycle() )
				section->tryOpen();
			return *section;
		}

		void SectionTracker::tryOpen() {
			if( !isComplete() && (m_filters.empty() || m_filters[0].empty() ||  m_filters[0] == m_nameAndLocation.name ) )
				open();
		}

		void SectionTracker::addInitialFilters( std::vector<std::string> const& filters ) {
			if( !filters.empty() ) {
				m_filters.push_back(""); // Root - should never be consulted
				m_filters.push_back(""); // Test Case - not a section filter
				m_filters.insert( m_filters.end(), filters.begin(), filters.end() );
			}
		}
		void SectionTracker::addNextFilters( std::vector<std::string> const& filters ) {
			if( filters.size() > 1 )
				m_filters.insert( m_filters.end(), ++filters.begin(), filters.end() );
		}

		IndexTracker::IndexTracker( NameAndLocation const& nameAndLocation, TrackerContext& ctx, ITracker* parent, int size )
			:   TrackerBase( nameAndLocation, ctx, parent ),
			m_size( size )
		{}

		bool IndexTracker::isIndexTracker() const { return true; }

		IndexTracker& IndexTracker::acquire( TrackerContext& ctx, NameAndLocation const& nameAndLocation, int size ) {
			std::shared_ptr<IndexTracker> tracker;

			ITracker& currentTracker = ctx.currentTracker();
			if( ITrackerPtr childTracker = currentTracker.findChild( nameAndLocation ) ) {
				assert( childTracker );
				assert( childTracker->isIndexTracker() );
				tracker = std::static_pointer_cast<IndexTracker>( childTracker );
			}
			else {
				tracker = std::make_shared<IndexTracker>( nameAndLocation, ctx, &currentTracker, size );
				currentTracker.addChild( tracker );
			}

			if( !ctx.completedCycle() && !tracker->isComplete() ) {
				if( tracker->m_runState != ExecutingChildren && tracker->m_runState != NeedsAnotherRun )
					tracker->moveNext();
				tracker->open();
			}

			return *tracker;
		}

		int IndexTracker::index() const { return m_index; }

		void IndexTracker::moveNext() {
			m_index++;
			m_children.clear();
		}

		void IndexTracker::close() {
			TrackerBase::close();
			if( m_runState == CompletedSuccessfully && m_index < m_size-1 )
				m_runState = Executing;
		}

	} // namespace TestCaseTracking

	using TestCaseTracking::ITracker;
	using TestCaseTracking::TrackerContext;
	using TestCaseTracking::SectionTracker;
	using TestCaseTracking::IndexTracker;

} // namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif
  // end catch_test_case_tracker.cpp
  // start catch_test_registry.cpp

namespace Catch {

	auto makeTestInvoker( void(*testAsFunction)() ) noexcept -> ITestInvoker* {
		return new(std::nothrow) TestInvokerAsFunction( testAsFunction );
	}

	NameAndTags::NameAndTags( StringRef const& name_ , StringRef const& tags_ ) noexcept : name( name_ ), tags( tags_ ) {}

	AutoReg::AutoReg( ITestInvoker* invoker, SourceLineInfo const& lineInfo, StringRef const& classOrMethod, NameAndTags const& nameAndTags ) noexcept {
		CATCH_TRY {
			getMutableRegistryHub()
			.registerTest(
				makeTestCase(
					invoker,
					extractClassName( classOrMethod ),
					nameAndTags,
					lineInfo));
		} CATCH_CATCH_ALL {
			// Do not throw when constructing global objects, instead register the exception to be processed later
			getMutableRegistryHub().registerStartupException();
		}
	}

	AutoReg::~AutoReg() = default;
}
// end catch_test_registry.cpp
// start catch_test_spec.cpp

#include <algorithm>
#include <string>
#include <vector>
#include <memory>

namespace Catch {

	TestSpec::Pattern::~Pattern() = default;
	TestSpec::NamePattern::~NamePattern() = default;
	TestSpec::TagPattern::~TagPattern() = default;
	TestSpec::ExcludedPattern::~ExcludedPattern() = default;

	TestSpec::NamePattern::NamePattern( std::string const& name )
		: m_wildcardPattern( toLower( name ), CaseSensitive::No )
	{}
	bool TestSpec::NamePattern::matches( TestCaseInfo const& testCase ) const {
		return m_wildcardPattern.matches( toLower( testCase.name ) );
	}

	TestSpec::TagPattern::TagPattern( std::string const& tag ) : m_tag( toLower( tag ) ) {}
	bool TestSpec::TagPattern::matches( TestCaseInfo const& testCase ) const {
		return std::find(begin(testCase.lcaseTags),
			end(testCase.lcaseTags),
			m_tag) != end(testCase.lcaseTags);
	}

	TestSpec::ExcludedPattern::ExcludedPattern( PatternPtr const& underlyingPattern ) : m_underlyingPattern( underlyingPattern ) {}
	bool TestSpec::ExcludedPattern::matches( TestCaseInfo const& testCase ) const { return !m_underlyingPattern->matches( testCase ); }

	bool TestSpec::Filter::matches( TestCaseInfo const& testCase ) const {
		// All patterns in a filter must match for the filter to be a match
		for( auto const& pattern : m_patterns ) {
			if( !pattern->matches( testCase ) )
				return false;
		}
		return true;
	}

	bool TestSpec::hasFilters() const {
		return !m_filters.empty();
	}
	bool TestSpec::matches( TestCaseInfo const& testCase ) const {
		// A TestSpec matches if any filter matches
		for( auto const& filter : m_filters )
			if( filter.matches( testCase ) )
				return true;
		return false;
	}
}
// end catch_test_spec.cpp
// start catch_test_spec_parser.cpp

namespace Catch {

	TestSpecParser::TestSpecParser( ITagAliasRegistry const& tagAliases ) : m_tagAliases( &tagAliases ) {}

	TestSpecParser& TestSpecParser::parse( std::string const& arg ) {
		m_mode = None;
		m_exclusion = false;
		m_start = std::string::npos;
		m_arg = m_tagAliases->expandAliases( arg );
		m_escapeChars.clear();
		for( m_pos = 0; m_pos < m_arg.size(); ++m_pos )
			visitChar( m_arg[m_pos] );
		if( m_mode == Name )
			addPattern<TestSpec::NamePattern>();
		return *this;
	}
	TestSpec TestSpecParser::testSpec() {
		addFilter();
		return m_testSpec;
	}

	void TestSpecParser::visitChar( char c ) {
		if( m_mode == None ) {
			switch( c ) {
			case ' ': return;
			case '~': m_exclusion = true; return;
			case '[': return startNewMode( Tag, ++m_pos );
			case '"': return startNewMode( QuotedName, ++m_pos );
			case '\\': return escape();
			default: startNewMode( Name, m_pos ); break;
			}
		}
		if( m_mode == Name ) {
			if( c == ',' ) {
				addPattern<TestSpec::NamePattern>();
				addFilter();
			}
			else if( c == '[' ) {
				if( subString() == "exclude:" )
					m_exclusion = true;
				else
					addPattern<TestSpec::NamePattern>();
				startNewMode( Tag, ++m_pos );
			}
			else if( c == '\\' )
				escape();
		}
		else if( m_mode == EscapedName )
			m_mode = Name;
		else if( m_mode == QuotedName && c == '"' )
			addPattern<TestSpec::NamePattern>();
		else if( m_mode == Tag && c == ']' )
			addPattern<TestSpec::TagPattern>();
	}
	void TestSpecParser::startNewMode( Mode mode, std::size_t start ) {
		m_mode = mode;
		m_start = start;
	}
	void TestSpecParser::escape() {
		if( m_mode == None )
			m_start = m_pos;
		m_mode = EscapedName;
		m_escapeChars.push_back( m_pos );
	}
	std::string TestSpecParser::subString() const { return m_arg.substr( m_start, m_pos - m_start ); }

	void TestSpecParser::addFilter() {
		if( !m_currentFilter.m_patterns.empty() ) {
			m_testSpec.m_filters.push_back( m_currentFilter );
			m_currentFilter = TestSpec::Filter();
		}
	}

	TestSpec parseTestSpec( std::string const& arg ) {
		return TestSpecParser( ITagAliasRegistry::get() ).parse( arg ).testSpec();
	}

} // namespace Catch
  // end catch_test_spec_parser.cpp
  // start catch_timer.cpp

#include <chrono>

static const uint64_t nanosecondsInSecond = 1000000000;

namespace Catch {

	auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
		return std::chrono::duration_cast<std::chrono::nanoseconds>( std::chrono::high_resolution_clock::now().time_since_epoch() ).count();
	}

	namespace {
		auto estimateClockResolution() -> uint64_t {
			uint64_t sum = 0;
			static const uint64_t iterations = 1000000;

			auto startTime = getCurrentNanosecondsSinceEpoch();

			for( std::size_t i = 0; i < iterations; ++i ) {

				uint64_t ticks;
				uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
				do {
					ticks = getCurrentNanosecondsSinceEpoch();
				} while( ticks == baseTicks );

				auto delta = ticks - baseTicks;
				sum += delta;

				// If we have been calibrating for over 3 seconds -- the clock
				// is terrible and we should move on.
				// TBD: How to signal that the measured resolution is probably wrong?
				if (ticks > startTime + 3 * nanosecondsInSecond) {
					return sum / i;
				}
			}

			// We're just taking the mean, here. To do better we could take the std. dev and exclude outliers
			// - and potentially do more iterations if there's a high variance.
			return sum/iterations;
		}
	}
	auto getEstimatedClockResolution() -> uint64_t {
		static auto s_resolution = estimateClockResolution();
		return s_resolution;
	}

	void Timer::start() {
		m_nanoseconds = getCurrentNanosecondsSinceEpoch();
	}
	auto Timer::getElapsedNanoseconds() const -> uint64_t {
		return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
	}
	auto Timer::getElapsedMicroseconds() const -> uint64_t {
		return getElapsedNanoseconds()/1000;
	}
	auto Timer::getElapsedMilliseconds() const -> unsigned int {
		return static_cast<unsigned int>(getElapsedMicroseconds()/1000);
	}
	auto Timer::getElapsedSeconds() const -> double {
		return getElapsedMicroseconds()/1000000.0;
	}

} // namespace Catch
  // end catch_timer.cpp
  // start catch_tostring.cpp

#if defined(__clang__)
#    pragma clang diagnostic push
#    pragma clang diagnostic ignored "-Wexit-time-destructors"
#    pragma clang diagnostic ignored "-Wglobal-constructors"
#endif

  // Enable specific decls locally
#if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

#include <cmath>
#include <iomanip>

namespace Catch {

	namespace Detail {

		const std::string unprintableString = "{?}";

		namespace {
			const int hexThreshold = 255;

			struct Endianness {
				enum Arch { Big, Little };

				static Arch which() {
					union _{
						int asInt;
						char asChar[sizeof (int)];
					} u;

					u.asInt = 1;
					return ( u.asChar[sizeof(int)-1] == 1 ) ? Big : Little;
				}
			};
		}

		std::string rawMemoryToString( const void *object, std::size_t size ) {
			// Reverse order for little endian architectures
			int i = 0, end = static_cast<int>( size ), inc = 1;
			if( Endianness::which() == Endianness::Little ) {
				i = end-1;
				end = inc = -1;
			}

			unsigned char const *bytes = static_cast<unsigned char const *>(object);
			ReusableStringStream rss;
			rss << "0x" << std::setfill('0') << std::hex;
			for( ; i != end; i += inc )
				rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
			return rss.str();
		}
	}

	template<typename T>
	std::string fpToString( T value, int precision ) {
		if (Catch::isnan(value)) {
			return "nan";
		}

		ReusableStringStream rss;
		rss << std::setprecision( precision )
			<< std::fixed
			<< value;
		std::string d = rss.str();
		std::size_t i = d.find_last_not_of( '0' );
		if( i != std::string::npos && i != d.size()-1 ) {
			if( d[i] == '.' )
				i++;
			d = d.substr( 0, i+1 );
		}
		return d;
	}

	//// ======================================================= ////
	//
	//   Out-of-line defs for full specialization of StringMaker
	//
	//// ======================================================= ////

	std::string StringMaker<std::string>::convert(const std::string& str) {
		if (!getCurrentContext().getConfig()->showInvisibles()) {
			return '"' + str + '"';
		}

		std::string s("\"");
		for (char c : str) {
			switch (c) {
			case '\n':
				s.append("\\n");
				break;
			case '\t':
				s.append("\\t");
				break;
			default:
				s.push_back(c);
				break;
			}
		}
		s.append("\"");
		return s;
	}

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
	std::string StringMaker<std::string_view>::convert(std::string_view str) {
		return ::Catch::Detail::stringify(std::string{ str });
	}
#endif

	std::string StringMaker<char const*>::convert(char const* str) {
		if (str) {
			return ::Catch::Detail::stringify(std::string{ str });
		} else {
			return{ "{null string}" };
		}
	}
	std::string StringMaker<char*>::convert(char* str) {
		if (str) {
			return ::Catch::Detail::stringify(std::string{ str });
		} else {
			return{ "{null string}" };
		}
	}

#ifdef CATCH_CONFIG_WCHAR
	std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
		std::string s;
		s.reserve(wstr.size());
		for (auto c : wstr) {
			s += (c <= 0xff) ? static_cast<char>(c) : '?';
		}
		return ::Catch::Detail::stringify(s);
	}

# ifdef CATCH_CONFIG_CPP17_STRING_VIEW
	std::string StringMaker<std::wstring_view>::convert(std::wstring_view str) {
		return StringMaker<std::wstring>::convert(std::wstring(str));
	}
# endif

	std::string StringMaker<wchar_t const*>::convert(wchar_t const * str) {
		if (str) {
			return ::Catch::Detail::stringify(std::wstring{ str });
		} else {
			return{ "{null string}" };
		}
	}
	std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
		if (str) {
			return ::Catch::Detail::stringify(std::wstring{ str });
		} else {
			return{ "{null string}" };
		}
	}
#endif

	std::string StringMaker<int>::convert(int value) {
		return ::Catch::Detail::stringify(static_cast<long long>(value));
	}
	std::string StringMaker<long>::convert(long value) {
		return ::Catch::Detail::stringify(static_cast<long long>(value));
	}
	std::string StringMaker<long long>::convert(long long value) {
		ReusableStringStream rss;
		rss << value;
		if (value > Detail::hexThreshold) {
			rss << " (0x" << std::hex << value << ')';
		}
		return rss.str();
	}

	std::string StringMaker<unsigned int>::convert(unsigned int value) {
		return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
	}
	std::string StringMaker<unsigned long>::convert(unsigned long value) {
		return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
	}
	std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
		ReusableStringStream rss;
		rss << value;
		if (value > Detail::hexThreshold) {
			rss << " (0x" << std::hex << value << ')';
		}
		return rss.str();
	}

	std::string StringMaker<bool>::convert(bool b) {
		return b ? "true" : "false";
	}

	std::string StringMaker<signed char>::convert(signed char value) {
		if (value == '\r') {
			return "'\\r'";
		} else if (value == '\f') {
			return "'\\f'";
		} else if (value == '\n') {
			return "'\\n'";
		} else if (value == '\t') {
			return "'\\t'";
		} else if ('\0' <= value && value < ' ') {
			return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
		} else {
			char chstr[] = "' '";
			chstr[1] = value;
			return chstr;
		}
	}
	std::string StringMaker<char>::convert(char c) {
		return ::Catch::Detail::stringify(static_cast<signed char>(c));
	}
	std::string StringMaker<unsigned char>::convert(unsigned char c) {
		return ::Catch::Detail::stringify(static_cast<char>(c));
	}

	std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
		return "nullptr";
	}

	std::string StringMaker<float>::convert(float value) {
		return fpToString(value, 5) + 'f';
	}
	std::string StringMaker<double>::convert(double value) {
		return fpToString(value, 10);
	}

	std::string ratio_string<std::atto>::symbol() { return "a"; }
	std::string ratio_string<std::femto>::symbol() { return "f"; }
	std::string ratio_string<std::pico>::symbol() { return "p"; }
	std::string ratio_string<std::nano>::symbol() { return "n"; }
	std::string ratio_string<std::micro>::symbol() { return "u"; }
	std::string ratio_string<std::milli>::symbol() { return "m"; }

} // end namespace Catch

#if defined(__clang__)
#    pragma clang diagnostic pop
#endif

  // end catch_tostring.cpp
  // start catch_totals.cpp

namespace Catch {

	Counts Counts::operator - ( Counts const& other ) const {
		Counts diff;
		diff.passed = passed - other.passed;
		diff.failed = failed - other.failed;
		diff.failedButOk = failedButOk - other.failedButOk;
		return diff;
	}

	Counts& Counts::operator += ( Counts const& other ) {
		passed += other.passed;
		failed += other.failed;
		failedButOk += other.failedButOk;
		return *this;
	}

	std::size_t Counts::total() const {
		return passed + failed + failedButOk;
	}
	bool Counts::allPassed() const {
		return failed == 0 && failedButOk == 0;
	}
	bool Counts::allOk() const {
		return failed == 0;
	}

	Totals Totals::operator - ( Totals const& other ) const {
		Totals diff;
		diff.assertions = assertions - other.assertions;
		diff.testCases = testCases - other.testCases;
		return diff;
	}

	Totals& Totals::operator += ( Totals const& other ) {
		assertions += other.assertions;
		testCases += other.testCases;
		return *this;
	}

	Totals Totals::delta( Totals const& prevTotals ) const {
		Totals diff = *this - prevTotals;
		if( diff.assertions.failed > 0 )
			++diff.testCases.failed;
		else if( diff.assertions.failedButOk > 0 )
			++diff.testCases.failedButOk;
		else
			++diff.testCases.passed;
		return diff;
	}

}
// end catch_totals.cpp
// start catch_uncaught_exceptions.cpp

#include <exception>

namespace Catch {
	bool uncaught_exceptions() {
#if defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
		return std::uncaught_exceptions() > 0;
#else
		return std::uncaught_exception();
#endif
	}
} // end namespace Catch
  // end catch_uncaught_exceptions.cpp
  // start catch_version.cpp

#include <ostream>

namespace Catch {

	Version::Version
	(   unsigned int _majorVersion,
		unsigned int _minorVersion,
		unsigned int _patchNumber,
		char const * const _branchName,
		unsigned int _buildNumber )
		:   majorVersion( _majorVersion ),
		minorVersion( _minorVersion ),
		patchNumber( _patchNumber ),
		branchName( _branchName ),
		buildNumber( _buildNumber )
	{}

	std::ostream& operator << ( std::ostream& os, Version const& version ) {
		os  << version.majorVersion << '.'
			<< version.minorVersion << '.'
			<< version.patchNumber;
		// branchName is never null -> 0th char is \0 if it is empty
		if (version.branchName[0]) {
			os << '-' << version.branchName
				<< '.' << version.buildNumber;
		}
		return os;
	}

	Version const& libraryVersion() {
		static Version version( 2, 5, 0, "", 0 );
		return version;
	}

}
// end catch_version.cpp
// start catch_wildcard_pattern.cpp

#include <sstream>

namespace Catch {

	WildcardPattern::WildcardPattern( std::string const& pattern,
		CaseSensitive::Choice caseSensitivity )
		:   m_caseSensitivity( caseSensitivity ),
		m_pattern( adjustCase( pattern ) )
	{
		if( startsWith( m_pattern, '*' ) ) {
			m_pattern = m_pattern.substr( 1 );
			m_wildcard = WildcardAtStart;
		}
		if( endsWith( m_pattern, '*' ) ) {
			m_pattern = m_pattern.substr( 0, m_pattern.size()-1 );
			m_wildcard = static_cast<WildcardPosition>( m_wildcard | WildcardAtEnd );
		}
	}

	bool WildcardPattern::matches( std::string const& str ) const {
		switch( m_wildcard ) {
		case NoWildcard:
			return m_pattern == adjustCase( str );
		case WildcardAtStart:
			return endsWith( adjustCase( str ), m_pattern );
		case WildcardAtEnd:
			return startsWith( adjustCase( str ), m_pattern );
		case WildcardAtBothEnds:
			return contains( adjustCase( str ), m_pattern );
		default:
			CATCH_INTERNAL_ERROR( "Unknown enum" );
		}
	}

	std::string WildcardPattern::adjustCase( std::string const& str ) const {
		return m_caseSensitivity == CaseSensitive::No ? toLower( str ) : str;
	}
}
// end catch_wildcard_pattern.cpp
// start catch_xmlwriter.cpp

#include <iomanip>

using uchar = unsigned char;

namespace Catch {

	namespace {

		size_t trailingBytes(unsigned char c) {
			if ((c & 0xE0) == 0xC0) {
				return 2;
			}
			if ((c & 0xF0) == 0xE0) {
				return 3;
			}
			if ((c & 0xF8) == 0xF0) {
				return 4;
			}
			CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
		}

		uint32_t headerValue(unsigned char c) {
			if ((c & 0xE0) == 0xC0) {
				return c & 0x1F;
			}
			if ((c & 0xF0) == 0xE0) {
				return c & 0x0F;
			}
			if ((c & 0xF8) == 0xF0) {
				return c & 0x07;
			}
			CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
		}

		void hexEscapeChar(std::ostream& os, unsigned char c) {
			os << "\\x"
				<< std::uppercase << std::hex << std::setfill('0') << std::setw(2)
				<< static_cast<int>(c);
		}

	} // anonymous namespace

	XmlEncode::XmlEncode( std::string const& str, ForWhat forWhat )
		:   m_str( str ),
		m_forWhat( forWhat )
	{}

	void XmlEncode::encodeTo( std::ostream& os ) const {
		// Apostrophe escaping not necessary if we always use " to write attributes
		// (see: http://www.w3.org/TR/xml/#syntax)

		for( std::size_t idx = 0; idx < m_str.size(); ++ idx ) {
			uchar c = m_str[idx];
			switch (c) {
			case '<':   os << "&lt;"; break;
			case '&':   os << "&amp;"; break;

			case '>':
				// See: http://www.w3.org/TR/xml/#syntax
				if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
					os << "&gt;";
				else
					os << c;
				break;

			case '\"':
				if (m_forWhat == ForAttributes)
					os << "&quot;";
				else
					os << c;
				break;

			default:
				// Check for control characters and invalid utf-8

				// Escape control characters in standard ascii
				// see http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
				if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
					hexEscapeChar(os, c);
					break;
				}

				// Plain ASCII: Write it to stream
				if (c < 0x7F) {
					os << c;
					break;
				}

				// UTF-8 territory
				// Check if the encoding is valid and if it is not, hex escape bytes.
				// Important: We do not check the exact decoded values for validity, only the encoding format
				// First check that this bytes is a valid lead byte:
				// This means that it is not encoded as 1111 1XXX
				// Or as 10XX XXXX
				if (c <  0xC0 ||
					c >= 0xF8) {
					hexEscapeChar(os, c);
					break;
				}

				auto encBytes = trailingBytes(c);
				// Are there enough bytes left to avoid accessing out-of-bounds memory?
				if (idx + encBytes - 1 >= m_str.size()) {
					hexEscapeChar(os, c);
					break;
				}
				// The header is valid, check data
				// The next encBytes bytes must together be a valid utf-8
				// This means: bitpattern 10XX XXXX and the extracted value is sane (ish)
				bool valid = true;
				uint32_t value = headerValue(c);
				for (std::size_t n = 1; n < encBytes; ++n) {
					uchar nc = m_str[idx + n];
					valid &= ((nc & 0xC0) == 0x80);
					value = (value << 6) | (nc & 0x3F);
				}

				if (
					// Wrong bit pattern of following bytes
					(!valid) ||
					// Overlong encodings
					(value < 0x80) ||
					(0x80 <= value && value < 0x800   && encBytes > 2) ||
					(0x800 < value && value < 0x10000 && encBytes > 3) ||
					// Encoded value out of range
					(value >= 0x110000)
					) {
					hexEscapeChar(os, c);
					break;
				}

				// If we got here, this is in fact a valid(ish) utf-8 sequence
				for (std::size_t n = 0; n < encBytes; ++n) {
					os << m_str[idx + n];
				}
				idx += encBytes - 1;
				break;
			}
		}
	}

	std::ostream& operator << ( std::ostream& os, XmlEncode const& xmlEncode ) {
		xmlEncode.encodeTo( os );
		return os;
	}

	XmlWriter::ScopedElement::ScopedElement( XmlWriter* writer )
		:   m_writer( writer )
	{}

	XmlWriter::ScopedElement::ScopedElement( ScopedElement&& other ) noexcept
		:   m_writer( other.m_writer ){
		other.m_writer = nullptr;
	}
	XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=( ScopedElement&& other ) noexcept {
		if ( m_writer ) {
			m_writer->endElement();
		}
		m_writer = other.m_writer;
		other.m_writer = nullptr;
		return *this;
	}

	XmlWriter::ScopedElement::~ScopedElement() {
		if( m_writer )
			m_writer->endElement();
	}

	XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText( std::string const& text, bool indent ) {
		m_writer->writeText( text, indent );
		return *this;
	}

	XmlWriter::XmlWriter( std::ostream& os ) : m_os( os )
	{
		writeDeclaration();
	}

	XmlWriter::~XmlWriter() {
		while( !m_tags.empty() )
			endElement();
	}

	XmlWriter& XmlWriter::startElement( std::string const& name ) {
		ensureTagClosed();
		newlineIfNecessary();
		m_os << m_indent << '<' << name;
		m_tags.push_back( name );
		m_indent += "  ";
		m_tagIsOpen = true;
		return *this;
	}

	XmlWriter::ScopedElement XmlWriter::scopedElement( std::string const& name ) {
		ScopedElement scoped( this );
		startElement( name );
		return scoped;
	}

	XmlWriter& XmlWriter::endElement() {
		newlineIfNecessary();
		m_indent = m_indent.substr( 0, m_indent.size()-2 );
		if( m_tagIsOpen ) {
			m_os << "/>";
			m_tagIsOpen = false;
		}
		else {
			m_os << m_indent << "</" << m_tags.back() << ">";
		}
		m_os << std::endl;
		m_tags.pop_back();
		return *this;
	}

	XmlWriter& XmlWriter::writeAttribute( std::string const& name, std::string const& attribute ) {
		if( !name.empty() && !attribute.empty() )
			m_os << ' ' << name << "=\"" << XmlEncode( attribute, XmlEncode::ForAttributes ) << '"';
		return *this;
	}

	XmlWriter& XmlWriter::writeAttribute( std::string const& name, bool attribute ) {
		m_os << ' ' << name << "=\"" << ( attribute ? "true" : "false" ) << '"';
		return *this;
	}

	XmlWriter& XmlWriter::writeText( std::string const& text, bool indent ) {
		if( !text.empty() ){
			bool tagWasOpen = m_tagIsOpen;
			ensureTagClosed();
			if( tagWasOpen && indent )
				m_os << m_indent;
			m_os << XmlEncode( text );
			m_needsNewline = true;
		}
		return *this;
	}

	XmlWriter& XmlWriter::writeComment( std::string const& text ) {
		ensureTagClosed();
		m_os << m_indent << "<!--" << text << "-->";
		m_needsNewline = true;
		return *this;
	}

	void XmlWriter::writeStylesheetRef( std::string const& url ) {
		m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
	}

	XmlWriter& XmlWriter::writeBlankLine() {
		ensureTagClosed();
		m_os << '\n';
		return *this;
	}

	void XmlWriter::ensureTagClosed() {
		if( m_tagIsOpen ) {
			m_os << ">" << std::endl;
			m_tagIsOpen = false;
		}
	}

	void XmlWriter::writeDeclaration() {
		m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
	}

	void XmlWriter::newlineIfNecessary() {
		if( m_needsNewline ) {
			m_os << std::endl;
			m_needsNewline = false;
		}
	}
}
// end catch_xmlwriter.cpp
// start catch_reporter_bases.cpp

#include <cstring>
#include <cfloat>
#include <cstdio>
#include <cassert>
#include <memory>

namespace Catch {
	void prepareExpandedExpression(AssertionResult& result) {
		result.getExpandedExpression();
	}

	// Because formatting using c++ streams is stateful, drop down to C is required
	// Alternatively we could use stringstream, but its performance is... not good.
	std::string getFormattedDuration( double duration ) {
		// Max exponent + 1 is required to represent the whole part
		// + 1 for decimal point
		// + 3 for the 3 decimal places
		// + 1 for null terminator
		const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
		char buffer[maxDoubleSize];

		// Save previous errno, to prevent sprintf from overwriting it
		ErrnoGuard guard;
#ifdef _MSC_VER
		sprintf_s(buffer, "%.3f", duration);
#else
		sprintf(buffer, "%.3f", duration);
#endif
		return std::string(buffer);
	}

	TestEventListenerBase::TestEventListenerBase(ReporterConfig const & _config)
		:StreamingReporterBase(_config) {}

	std::set<Verbosity> TestEventListenerBase::getSupportedVerbosities() {
		return { Verbosity::Quiet, Verbosity::Normal, Verbosity::High };
	}

	void TestEventListenerBase::assertionStarting(AssertionInfo const &) {}

	bool TestEventListenerBase::assertionEnded(AssertionStats const &) {
		return false;
	}

} // end namespace Catch
  // end catch_reporter_bases.cpp
  // start catch_reporter_compact.cpp

namespace {

#ifdef CATCH_PLATFORM_MAC
	const char* failedString() { return "FAILED"; }
	const char* passedString() { return "PASSED"; }
#else
	const char* failedString() { return "failed"; }
	const char* passedString() { return "passed"; }
#endif

	// Colour::LightGrey
	Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }

	std::string bothOrAll( std::size_t count ) {
		return count == 1 ? std::string() :
			count == 2 ? "both " : "all " ;
	}

} // anon namespace

namespace Catch {
	namespace {
		// Colour, message variants:
		// - white: No tests ran.
		// -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
		// - white: Passed [both/all] N test cases (no assertions).
		// -   red: Failed N tests cases, failed M assertions.
		// - green: Passed [both/all] N tests cases with M assertions.
		void printTotals(std::ostream& out, const Totals& totals) {
			if (totals.testCases.total() == 0) {
				out << "No tests ran.";
			} else if (totals.testCases.failed == totals.testCases.total()) {
				Colour colour(Colour::ResultError);
				const std::string qualify_assertions_failed =
					totals.assertions.failed == totals.assertions.total() ?
					bothOrAll(totals.assertions.failed) : std::string();
				out <<
					"Failed " << bothOrAll(totals.testCases.failed)
					<< pluralise(totals.testCases.failed, "test case") << ", "
					"failed " << qualify_assertions_failed <<
					pluralise(totals.assertions.failed, "assertion") << '.';
			} else if (totals.assertions.total() == 0) {
				out <<
					"Passed " << bothOrAll(totals.testCases.total())
					<< pluralise(totals.testCases.total(), "test case")
					<< " (no assertions).";
			} else if (totals.assertions.failed) {
				Colour colour(Colour::ResultError);
				out <<
					"Failed " << pluralise(totals.testCases.failed, "test case") << ", "
					"failed " << pluralise(totals.assertions.failed, "assertion") << '.';
			} else {
				Colour colour(Colour::ResultSuccess);
				out <<
					"Passed " << bothOrAll(totals.testCases.passed)
					<< pluralise(totals.testCases.passed, "test case") <<
					" with " << pluralise(totals.assertions.passed, "assertion") << '.';
			}
		}

		// Implementation of CompactReporter formatting
		class AssertionPrinter {
		public:
			AssertionPrinter& operator= (AssertionPrinter const&) = delete;
			AssertionPrinter(AssertionPrinter const&) = delete;
			AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
				: stream(_stream)
				, result(_stats.assertionResult)
				, messages(_stats.infoMessages)
				, itMessage(_stats.infoMessages.begin())
				, printInfoMessages(_printInfoMessages) {}

			void print() {
				printSourceInfo();

				itMessage = messages.begin();

				switch (result.getResultType()) {
				case ResultWas::Ok:
					printResultType(Colour::ResultSuccess, passedString());
					printOriginalExpression();
					printReconstructedExpression();
					if (!result.hasExpression())
						printRemainingMessages(Colour::None);
					else
						printRemainingMessages();
					break;
				case ResultWas::ExpressionFailed:
					if (result.isOk())
						printResultType(Colour::ResultSuccess, failedString() + std::string(" - but was ok"));
					else
						printResultType(Colour::Error, failedString());
					printOriginalExpression();
					printReconstructedExpression();
					printRemainingMessages();
					break;
				case ResultWas::ThrewException:
					printResultType(Colour::Error, failedString());
					printIssue("unexpected exception with message:");
					printMessage();
					printExpressionWas();
					printRemainingMessages();
					break;
				case ResultWas::FatalErrorCondition:
					printResultType(Colour::Error, failedString());
					printIssue("fatal error condition with message:");
					printMessage();
					printExpressionWas();
					printRemainingMessages();
					break;
				case ResultWas::DidntThrowException:
					printResultType(Colour::Error, failedString());
					printIssue("expected exception, got none");
					printExpressionWas();
					printRemainingMessages();
					break;
				case ResultWas::Info:
					printResultType(Colour::None, "info");
					printMessage();
					printRemainingMessages();
					break;
				case ResultWas::Warning:
					printResultType(Colour::None, "warning");
					printMessage();
					printRemainingMessages();
					break;
				case ResultWas::ExplicitFailure:
					printResultType(Colour::Error, failedString());
					printIssue("explicitly");
					printRemainingMessages(Colour::None);
					break;
					// These cases are here to prevent compiler warnings
				case ResultWas::Unknown:
				case ResultWas::FailureBit:
				case ResultWas::Exception:
					printResultType(Colour::Error, "** internal error **");
					break;
				}
			}

		private:
			void printSourceInfo() const {
				Colour colourGuard(Colour::FileName);
				stream << result.getSourceInfo() << ':';
			}

			void printResultType(Colour::Code colour, std::string const& passOrFail) const {
				if (!passOrFail.empty()) {
					{
						Colour colourGuard(colour);
						stream << ' ' << passOrFail;
					}
					stream << ':';
				}
			}

			void printIssue(std::string const& issue) const {
				stream << ' ' << issue;
			}

			void printExpressionWas() {
				if (result.hasExpression()) {
					stream << ';';
					{
						Colour colour(dimColour());
						stream << " expression was:";
					}
					printOriginalExpression();
				}
			}

			void printOriginalExpression() const {
				if (result.hasExpression()) {
					stream << ' ' << result.getExpression();
				}
			}

			void printReconstructedExpression() const {
				if (result.hasExpandedExpression()) {
					{
						Colour colour(dimColour());
						stream << " for: ";
					}
					stream << result.getExpandedExpression();
				}
			}

			void printMessage() {
				if (itMessage != messages.end()) {
					stream << " '" << itMessage->message << '\'';
					++itMessage;
				}
			}

			void printRemainingMessages(Colour::Code colour = dimColour()) {
				if (itMessage == messages.end())
					return;

				// using messages.end() directly yields (or auto) compilation error:
				std::vector<MessageInfo>::const_iterator itEnd = messages.end();
				const std::size_t N = static_cast<std::size_t>(std::distance(itMessage, itEnd));

				{
					Colour colourGuard(colour);
					stream << " with " << pluralise(N, "message") << ':';
				}

				for (; itMessage != itEnd; ) {
					// If this assertion is a warning ignore any INFO messages
					if (printInfoMessages || itMessage->type != ResultWas::Info) {
						stream << " '" << itMessage->message << '\'';
						if (++itMessage != itEnd) {
							Colour colourGuard(dimColour());
							stream << " and";
						}
					}
				}
			}

		private:
			std::ostream& stream;
			AssertionResult const& result;
			std::vector<MessageInfo> messages;
			std::vector<MessageInfo>::const_iterator itMessage;
			bool printInfoMessages;
		};

	} // anon namespace

	std::string CompactReporter::getDescription() {
		return "Reports test results on a single line, suitable for IDEs";
	}

	ReporterPreferences CompactReporter::getPreferences() const {
		return m_reporterPrefs;
	}

	void CompactReporter::noMatchingTestCases( std::string const& spec ) {
		stream << "No test cases matched '" << spec << '\'' << std::endl;
	}

	void CompactReporter::assertionStarting( AssertionInfo const& ) {}

	bool CompactReporter::assertionEnded( AssertionStats const& _assertionStats ) {
		AssertionResult const& result = _assertionStats.assertionResult;

		bool printInfoMessages = true;

		// Drop out if result was successful and we're not printing those
		if( !m_config->includeSuccessfulResults() && result.isOk() ) {
			if( result.getResultType() != ResultWas::Warning )
				return false;
			printInfoMessages = false;
		}

		AssertionPrinter printer( stream, _assertionStats, printInfoMessages );
		printer.print();

		stream << std::endl;
		return true;
	}

	void CompactReporter::sectionEnded(SectionStats const& _sectionStats) {
		if (m_config->showDurations() == ShowDurations::Always) {
			stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
		}
	}

	void CompactReporter::testRunEnded( TestRunStats const& _testRunStats ) {
		printTotals( stream, _testRunStats.totals );
		stream << '\n' << std::endl;
		StreamingReporterBase::testRunEnded( _testRunStats );
	}

	CompactReporter::~CompactReporter() {}

	CATCH_REGISTER_REPORTER( "compact", CompactReporter )

} // end namespace Catch
  // end catch_reporter_compact.cpp
  // start catch_reporter_console.cpp

#include <cfloat>
#include <cstdio>

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
  // Note that 4062 (not all labels are handled
  // and default is missing) is enabled
#endif

namespace Catch {

	namespace {

		// Formatter impl for ConsoleReporter
		class ConsoleAssertionPrinter {
		public:
			ConsoleAssertionPrinter& operator= (ConsoleAssertionPrinter const&) = delete;
			ConsoleAssertionPrinter(ConsoleAssertionPrinter const&) = delete;
			ConsoleAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats, bool _printInfoMessages)
				: stream(_stream),
				stats(_stats),
				result(_stats.assertionResult),
				colour(Colour::None),
				message(result.getMessage()),
				messages(_stats.infoMessages),
				printInfoMessages(_printInfoMessages) {
				switch (result.getResultType()) {
				case ResultWas::Ok:
					colour = Colour::Success;
					passOrFail = "PASSED";
					//if( result.hasMessage() )
					if (_stats.infoMessages.size() == 1)
						messageLabel = "with message";
					if (_stats.infoMessages.size() > 1)
						messageLabel = "with messages";
					break;
				case ResultWas::ExpressionFailed:
					if (result.isOk()) {
						colour = Colour::Success;
						passOrFail = "FAILED - but was ok";
					} else {
						colour = Colour::Error;
						passOrFail = "FAILED";
					}
					if (_stats.infoMessages.size() == 1)
						messageLabel = "with message";
					if (_stats.infoMessages.size() > 1)
						messageLabel = "with messages";
					break;
				case ResultWas::ThrewException:
					colour = Colour::Error;
					passOrFail = "FAILED";
					messageLabel = "due to unexpected exception with ";
					if (_stats.infoMessages.size() == 1)
						messageLabel += "message";
					if (_stats.infoMessages.size() > 1)
						messageLabel += "messages";
					break;
				case ResultWas::FatalErrorCondition:
					colour = Colour::Error;
					passOrFail = "FAILED";
					messageLabel = "due to a fatal error condition";
					break;
				case ResultWas::DidntThrowException:
					colour = Colour::Error;
					passOrFail = "FAILED";
					messageLabel = "because no exception was thrown where one was expected";
					break;
				case ResultWas::Info:
					messageLabel = "info";
					break;
				case ResultWas::Warning:
					messageLabel = "warning";
					break;
				case ResultWas::ExplicitFailure:
					passOrFail = "FAILED";
					colour = Colour::Error;
					if (_stats.infoMessages.size() == 1)
						messageLabel = "explicitly with message";
					if (_stats.infoMessages.size() > 1)
						messageLabel = "explicitly with messages";
					break;
					// These cases are here to prevent compiler warnings
				case ResultWas::Unknown:
				case ResultWas::FailureBit:
				case ResultWas::Exception:
					passOrFail = "** internal error **";
					colour = Colour::Error;
					break;
				}
			}

			void print() const {
				printSourceInfo();
				if (stats.totals.assertions.total() > 0) {
					printResultType();
					printOriginalExpression();
					printReconstructedExpression();
				} else {
					stream << '\n';
				}
				printMessage();
			}

		private:
			void printResultType() const {
				if (!passOrFail.empty()) {
					Colour colourGuard(colour);
					stream << passOrFail << ":\n";
				}
			}
			void printOriginalExpression() const {
				if (result.hasExpression()) {
					Colour colourGuard(Colour::OriginalExpression);
					stream << "  ";
					stream << result.getExpressionInMacro();
					stream << '\n';
				}
			}
			void printReconstructedExpression() const {
				if (result.hasExpandedExpression()) {
					stream << "with expansion:\n";
					Colour colourGuard(Colour::ReconstructedExpression);
					stream << Column(result.getExpandedExpression()).indent(2) << '\n';
				}
			}
			void printMessage() const {
				if (!messageLabel.empty())
					stream << messageLabel << ':' << '\n';
				for (auto const& msg : messages) {
					// If this assertion is a warning ignore any INFO messages
					if (printInfoMessages || msg.type != ResultWas::Info)
						stream << Column(msg.message).indent(2) << '\n';
				}
			}
			void printSourceInfo() const {
				Colour colourGuard(Colour::FileName);
				stream << result.getSourceInfo() << ": ";
			}

			std::ostream& stream;
			AssertionStats const& stats;
			AssertionResult const& result;
			Colour::Code colour;
			std::string passOrFail;
			std::string messageLabel;
			std::string message;
			std::vector<MessageInfo> messages;
			bool printInfoMessages;
		};

		std::size_t makeRatio(std::size_t number, std::size_t total) {
			std::size_t ratio = total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
			return (ratio == 0 && number > 0) ? 1 : ratio;
		}

		std::size_t& findMax(std::size_t& i, std::size_t& j, std::size_t& k) {
			if (i > j && i > k)
				return i;
			else if (j > k)
				return j;
			else
				return k;
		}

		struct ColumnInfo {
			enum Justification { Left, Right };
			std::string name;
			int width;
			Justification justification;
		};
		struct ColumnBreak {};
		struct RowBreak {};

		class Duration {
			enum class Unit {
				Auto,
				Nanoseconds,
				Microseconds,
				Milliseconds,
				Seconds,
				Minutes
			};
			static const uint64_t s_nanosecondsInAMicrosecond = 1000;
			static const uint64_t s_nanosecondsInAMillisecond = 1000 * s_nanosecondsInAMicrosecond;
			static const uint64_t s_nanosecondsInASecond = 1000 * s_nanosecondsInAMillisecond;
			static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

			uint64_t m_inNanoseconds;
			Unit m_units;

		public:
			explicit Duration(uint64_t inNanoseconds, Unit units = Unit::Auto)
				: m_inNanoseconds(inNanoseconds),
				m_units(units) {
				if (m_units == Unit::Auto) {
					if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
						m_units = Unit::Nanoseconds;
					else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
						m_units = Unit::Microseconds;
					else if (m_inNanoseconds < s_nanosecondsInASecond)
						m_units = Unit::Milliseconds;
					else if (m_inNanoseconds < s_nanosecondsInAMinute)
						m_units = Unit::Seconds;
					else
						m_units = Unit::Minutes;
				}

			}

			auto value() const -> double {
				switch (m_units) {
				case Unit::Microseconds:
					return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMicrosecond);
				case Unit::Milliseconds:
					return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMillisecond);
				case Unit::Seconds:
					return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
				case Unit::Minutes:
					return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
				default:
					return static_cast<double>(m_inNanoseconds);
				}
			}
			auto unitsAsString() const -> std::string {
				switch (m_units) {
				case Unit::Nanoseconds:
					return "ns";
				case Unit::Microseconds:
					return "us";
				case Unit::Milliseconds:
					return "ms";
				case Unit::Seconds:
					return "s";
				case Unit::Minutes:
					return "m";
				default:
					return "** internal error **";
				}

			}
			friend auto operator << (std::ostream& os, Duration const& duration) -> std::ostream& {
				return os << duration.value() << " " << duration.unitsAsString();
			}
		};
	} // end anon namespace

	class TablePrinter {
		std::ostream& m_os;
		std::vector<ColumnInfo> m_columnInfos;
		std::ostringstream m_oss;
		int m_currentColumn = -1;
		bool m_isOpen = false;

	public:
		TablePrinter( std::ostream& os, std::vector<ColumnInfo> columnInfos )
			:   m_os( os ),
			m_columnInfos( std::move( columnInfos ) ) {}

		auto columnInfos() const -> std::vector<ColumnInfo> const& {
			return m_columnInfos;
		}

		void open() {
			if (!m_isOpen) {
				m_isOpen = true;
				*this << RowBreak();
				for (auto const& info : m_columnInfos)
					*this << info.name << ColumnBreak();
				*this << RowBreak();
				m_os << Catch::getLineOfChars<'-'>() << "\n";
			}
		}
		void close() {
			if (m_isOpen) {
				*this << RowBreak();
				m_os << std::endl;
				m_isOpen = false;
			}
		}

		template<typename T>
		friend TablePrinter& operator << (TablePrinter& tp, T const& value) {
			tp.m_oss << value;
			return tp;
		}

		friend TablePrinter& operator << (TablePrinter& tp, ColumnBreak) {
			auto colStr = tp.m_oss.str();
			// This takes account of utf8 encodings
			auto strSize = Catch::StringRef(colStr).numberOfCharacters();
			tp.m_oss.str("");
			tp.open();
			if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
				tp.m_currentColumn = -1;
				tp.m_os << "\n";
			}
			tp.m_currentColumn++;

			auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
			auto padding = (strSize + 2 < static_cast<std::size_t>(colInfo.width))
				? std::string(colInfo.width - (strSize + 2), ' ')
				: std::string();
			if (colInfo.justification == ColumnInfo::Left)
				tp.m_os << colStr << padding << " ";
			else
				tp.m_os << padding << colStr << " ";
			return tp;
		}

		friend TablePrinter& operator << (TablePrinter& tp, RowBreak) {
			if (tp.m_currentColumn > 0) {
				tp.m_os << "\n";
				tp.m_currentColumn = -1;
			}
			return tp;
		}
	};

	ConsoleReporter::ConsoleReporter(ReporterConfig const& config)
		: StreamingReporterBase(config),
		m_tablePrinter(new TablePrinter(config.stream(),
			{
				{ "benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32, ColumnInfo::Left },
			{ "iters", 8, ColumnInfo::Right },
			{ "elapsed ns", 14, ColumnInfo::Right },
			{ "average", 14, ColumnInfo::Right }
			})) {}
	ConsoleReporter::~ConsoleReporter() = default;

	std::string ConsoleReporter::getDescription() {
		return "Reports test results as plain lines of text";
	}

	void ConsoleReporter::noMatchingTestCases(std::string const& spec) {
		stream << "No test cases matched '" << spec << '\'' << std::endl;
	}

	void ConsoleReporter::assertionStarting(AssertionInfo const&) {}

	bool ConsoleReporter::assertionEnded(AssertionStats const& _assertionStats) {
		AssertionResult const& result = _assertionStats.assertionResult;

		bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

		// Drop out if result was successful but we're not printing them.
		if (!includeResults && result.getResultType() != ResultWas::Warning)
			return false;

		lazyPrint();

		ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
		printer.print();
		stream << std::endl;
		return true;
	}

	void ConsoleReporter::sectionStarting(SectionInfo const& _sectionInfo) {
		m_headerPrinted = false;
		StreamingReporterBase::sectionStarting(_sectionInfo);
	}
	void ConsoleReporter::sectionEnded(SectionStats const& _sectionStats) {
		m_tablePrinter->close();
		if (_sectionStats.missingAssertions) {
			lazyPrint();
			Colour colour(Colour::ResultError);
			if (m_sectionStack.size() > 1)
				stream << "\nNo assertions in section";
			else
				stream << "\nNo assertions in test case";
			stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
		}
		if (m_config->showDurations() == ShowDurations::Always) {
			stream << getFormattedDuration(_sectionStats.durationInSeconds) << " s: " << _sectionStats.sectionInfo.name << std::endl;
		}
		if (m_headerPrinted) {
			m_headerPrinted = false;
		}
		StreamingReporterBase::sectionEnded(_sectionStats);
	}

	void ConsoleReporter::benchmarkStarting(BenchmarkInfo const& info) {
		lazyPrintWithoutClosingBenchmarkTable();

		auto nameCol = Column( info.name ).width( static_cast<std::size_t>( m_tablePrinter->columnInfos()[0].width - 2 ) );

		bool firstLine = true;
		for (auto line : nameCol) {
			if (!firstLine)
				(*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
			else
				firstLine = false;

			(*m_tablePrinter) << line << ColumnBreak();
		}
	}
	void ConsoleReporter::benchmarkEnded(BenchmarkStats const& stats) {
		Duration average(stats.elapsedTimeInNanoseconds / stats.iterations);
		(*m_tablePrinter)
			<< stats.iterations << ColumnBreak()
			<< stats.elapsedTimeInNanoseconds << ColumnBreak()
			<< average << ColumnBreak();
	}

	void ConsoleReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
		m_tablePrinter->close();
		StreamingReporterBase::testCaseEnded(_testCaseStats);
		m_headerPrinted = false;
	}
	void ConsoleReporter::testGroupEnded(TestGroupStats const& _testGroupStats) {
		if (currentGroupInfo.used) {
			printSummaryDivider();
			stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
			printTotals(_testGroupStats.totals);
			stream << '\n' << std::endl;
		}
		StreamingReporterBase::testGroupEnded(_testGroupStats);
	}
	void ConsoleReporter::testRunEnded(TestRunStats const& _testRunStats) {
		printTotalsDivider(_testRunStats.totals);
		printTotals(_testRunStats.totals);
		stream << std::endl;
		StreamingReporterBase::testRunEnded(_testRunStats);
	}

	void ConsoleReporter::lazyPrint() {

		m_tablePrinter->close();
		lazyPrintWithoutClosingBenchmarkTable();
	}

	void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {

		if (!currentTestRunInfo.used)
			lazyPrintRunInfo();
		if (!currentGroupInfo.used)
			lazyPrintGroupInfo();

		if (!m_headerPrinted) {
			printTestCaseAndSectionHeader();
			m_headerPrinted = true;
		}
	}
	void ConsoleReporter::lazyPrintRunInfo() {
		stream << '\n' << getLineOfChars<'~'>() << '\n';
		Colour colour(Colour::SecondaryText);
		stream << currentTestRunInfo->name
			<< " is a Catch v" << libraryVersion() << " host application.\n"
			<< "Run with -? for options\n\n";

		if (m_config->rngSeed() != 0)
			stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";

		currentTestRunInfo.used = true;
	}
	void ConsoleReporter::lazyPrintGroupInfo() {
		if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1) {
			printClosedHeader("Group: " + currentGroupInfo->name);
			currentGroupInfo.used = true;
		}
	}
	void ConsoleReporter::printTestCaseAndSectionHeader() {
		assert(!m_sectionStack.empty());
		printOpenHeader(currentTestCaseInfo->name);

		if (m_sectionStack.size() > 1) {
			Colour colourGuard(Colour::Headers);

			auto
				it = m_sectionStack.begin() + 1, // Skip first section (test case)
				itEnd = m_sectionStack.end();
			for (; it != itEnd; ++it)
				printHeaderString(it->name, 2);
		}

		SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;

		if (!lineInfo.empty()) {
			stream << getLineOfChars<'-'>() << '\n';
			Colour colourGuard(Colour::FileName);
			stream << lineInfo << '\n';
		}
		stream << getLineOfChars<'.'>() << '\n' << std::endl;
	}

	void ConsoleReporter::printClosedHeader(std::string const& _name) {
		printOpenHeader(_name);
		stream << getLineOfChars<'.'>() << '\n';
	}
	void ConsoleReporter::printOpenHeader(std::string const& _name) {
		stream << getLineOfChars<'-'>() << '\n';
		{
			Colour colourGuard(Colour::Headers);
			printHeaderString(_name);
		}
	}

	// if string has a : in first line will set indent to follow it on
	// subsequent lines
	void ConsoleReporter::printHeaderString(std::string const& _string, std::size_t indent) {
		std::size_t i = _string.find(": ");
		if (i != std::string::npos)
			i += 2;
		else
			i = 0;
		stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
	}

	struct SummaryColumn {

		SummaryColumn( std::string _label, Colour::Code _colour )
			:   label( std::move( _label ) ),
			colour( _colour ) {}
		SummaryColumn addRow( std::size_t count ) {
			ReusableStringStream rss;
			rss << count;
			std::string row = rss.str();
			for (auto& oldRow : rows) {
				while (oldRow.size() < row.size())
					oldRow = ' ' + oldRow;
				while (oldRow.size() > row.size())
					row = ' ' + row;
			}
			rows.push_back(row);
			return *this;
		}

		std::string label;
		Colour::Code colour;
		std::vector<std::string> rows;

	};

	void ConsoleReporter::printTotals( Totals const& totals ) {
		if (totals.testCases.total() == 0) {
			stream << Colour(Colour::Warning) << "No tests ran\n";
		} else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
			stream << Colour(Colour::ResultSuccess) << "All tests passed";
			stream << " ("
				<< pluralise(totals.assertions.passed, "assertion") << " in "
				<< pluralise(totals.testCases.passed, "test case") << ')'
				<< '\n';
		} else {

			std::vector<SummaryColumn> columns;
			columns.push_back(SummaryColumn("", Colour::None)
				.addRow(totals.testCases.total())
				.addRow(totals.assertions.total()));
			columns.push_back(SummaryColumn("passed", Colour::Success)
				.addRow(totals.testCases.passed)
				.addRow(totals.assertions.passed));
			columns.push_back(SummaryColumn("failed", Colour::ResultError)
				.addRow(totals.testCases.failed)
				.addRow(totals.assertions.failed));
			columns.push_back(SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
				.addRow(totals.testCases.failedButOk)
				.addRow(totals.assertions.failedButOk));

			printSummaryRow("test cases", columns, 0);
			printSummaryRow("assertions", columns, 1);
		}
	}
	void ConsoleReporter::printSummaryRow(std::string const& label, std::vector<SummaryColumn> const& cols, std::size_t row) {
		for (auto col : cols) {
			std::string value = col.rows[row];
			if (col.label.empty()) {
				stream << label << ": ";
				if (value != "0")
					stream << value;
				else
					stream << Colour(Colour::Warning) << "- none -";
			} else if (value != "0") {
				stream << Colour(Colour::LightGrey) << " | ";
				stream << Colour(col.colour)
					<< value << ' ' << col.label;
			}
		}
		stream << '\n';
	}

	void ConsoleReporter::printTotalsDivider(Totals const& totals) {
		if (totals.testCases.total() > 0) {
			std::size_t failedRatio = makeRatio(totals.testCases.failed, totals.testCases.total());
			std::size_t failedButOkRatio = makeRatio(totals.testCases.failedButOk, totals.testCases.total());
			std::size_t passedRatio = makeRatio(totals.testCases.passed, totals.testCases.total());
			while (failedRatio + failedButOkRatio + passedRatio < CATCH_CONFIG_CONSOLE_WIDTH - 1)
				findMax(failedRatio, failedButOkRatio, passedRatio)++;
			while (failedRatio + failedButOkRatio + passedRatio > CATCH_CONFIG_CONSOLE_WIDTH - 1)
				findMax(failedRatio, failedButOkRatio, passedRatio)--;

			stream << Colour(Colour::Error) << std::string(failedRatio, '=');
			stream << Colour(Colour::ResultExpectedFailure) << std::string(failedButOkRatio, '=');
			if (totals.testCases.allPassed())
				stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
			else
				stream << Colour(Colour::Success) << std::string(passedRatio, '=');
		} else {
			stream << Colour(Colour::Warning) << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
		}
		stream << '\n';
	}
	void ConsoleReporter::printSummaryDivider() {
		stream << getLineOfChars<'-'>() << '\n';
	}

	CATCH_REGISTER_REPORTER("console", ConsoleReporter)

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
  // end catch_reporter_console.cpp
  // start catch_reporter_junit.cpp

#include <cassert>
#include <sstream>
#include <ctime>
#include <algorithm>

namespace Catch {

	namespace {
		std::string getCurrentTimestamp() {
			// Beware, this is not reentrant because of backward compatibility issues
			// Also, UTC only, again because of backward compatibility (%z is C++11)
			time_t rawtime;
			std::time(&rawtime);
			auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");

#ifdef _MSC_VER
			std::tm timeInfo = {};
			gmtime_s(&timeInfo, &rawtime);
#else
			std::tm* timeInfo;
			timeInfo = std::gmtime(&rawtime);
#endif

			char timeStamp[timeStampSize];
			const char * const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
			std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
			std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
			return std::string(timeStamp);
		}

		std::string fileNameTag(const std::vector<std::string> &tags) {
			auto it = std::find_if(begin(tags),
				end(tags),
				[] (std::string const& tag) {return tag.front() == '#'; });
			if (it != tags.end())
				return it->substr(1);
			return std::string();
		}
	} // anonymous namespace

	JunitReporter::JunitReporter( ReporterConfig const& _config )
		:   CumulativeReporterBase( _config ),
		xml( _config.stream() )
	{
		m_reporterPrefs.shouldRedirectStdOut = true;
		m_reporterPrefs.shouldReportAllAssertions = true;
	}

	JunitReporter::~JunitReporter() {}

	std::string JunitReporter::getDescription() {
		return "Reports test results in an XML format that looks like Ant's junitreport target";
	}

	void JunitReporter::noMatchingTestCases( std::string const& /*spec*/ ) {}

	void JunitReporter::testRunStarting( TestRunInfo const& runInfo )  {
		CumulativeReporterBase::testRunStarting( runInfo );
		xml.startElement( "testsuites" );
	}

	void JunitReporter::testGroupStarting( GroupInfo const& groupInfo ) {
		suiteTimer.start();
		stdOutForSuite.clear();
		stdErrForSuite.clear();
		unexpectedExceptions = 0;
		CumulativeReporterBase::testGroupStarting( groupInfo );
	}

	void JunitReporter::testCaseStarting( TestCaseInfo const& testCaseInfo ) {
		m_okToFail = testCaseInfo.okToFail();
	}

	bool JunitReporter::assertionEnded( AssertionStats const& assertionStats ) {
		if( assertionStats.assertionResult.getResultType() == ResultWas::ThrewException && !m_okToFail )
			unexpectedExceptions++;
		return CumulativeReporterBase::assertionEnded( assertionStats );
	}

	void JunitReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
		stdOutForSuite += testCaseStats.stdOut;
		stdErrForSuite += testCaseStats.stdErr;
		CumulativeReporterBase::testCaseEnded( testCaseStats );
	}

	void JunitReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
		double suiteTime = suiteTimer.getElapsedSeconds();
		CumulativeReporterBase::testGroupEnded( testGroupStats );
		writeGroup( *m_testGroups.back(), suiteTime );
	}

	void JunitReporter::testRunEndedCumulative() {
		xml.endElement();
	}

	void JunitReporter::writeGroup( TestGroupNode const& groupNode, double suiteTime ) {
		XmlWriter::ScopedElement e = xml.scopedElement( "testsuite" );
		TestGroupStats const& stats = groupNode.value;
		xml.writeAttribute( "name", stats.groupInfo.name );
		xml.writeAttribute( "errors", unexpectedExceptions );
		xml.writeAttribute( "failures", stats.totals.assertions.failed-unexpectedExceptions );
		xml.writeAttribute( "tests", stats.totals.assertions.total() );
		xml.writeAttribute( "hostname", "tbd" ); // !TBD
		if( m_config->showDurations() == ShowDurations::Never )
			xml.writeAttribute( "time", "" );
		else
			xml.writeAttribute( "time", suiteTime );
		xml.writeAttribute( "timestamp", getCurrentTimestamp() );

		// Write test cases
		for( auto const& child : groupNode.children )
			writeTestCase( *child );

		xml.scopedElement( "system-out" ).writeText( trim( stdOutForSuite ), false );
		xml.scopedElement( "system-err" ).writeText( trim( stdErrForSuite ), false );
	}

	void JunitReporter::writeTestCase( TestCaseNode const& testCaseNode ) {
		TestCaseStats const& stats = testCaseNode.value;

		// All test cases have exactly one section - which represents the
		// test case itself. That section may have 0-n nested sections
		assert( testCaseNode.children.size() == 1 );
		SectionNode const& rootSection = *testCaseNode.children.front();

		std::string className = stats.testInfo.className;

		if( className.empty() ) {
			className = fileNameTag(stats.testInfo.tags);
			if ( className.empty() )
				className = "global";
		}

		if ( !m_config->name().empty() )
			className = m_config->name() + "." + className;

		writeSection( className, "", rootSection );
	}

	void JunitReporter::writeSection(  std::string const& className,
		std::string const& rootName,
		SectionNode const& sectionNode ) {
		std::string name = trim( sectionNode.stats.sectionInfo.name );
		if( !rootName.empty() )
			name = rootName + '/' + name;

		if( !sectionNode.assertions.empty() ||
			!sectionNode.stdOut.empty() ||
			!sectionNode.stdErr.empty() ) {
			XmlWriter::ScopedElement e = xml.scopedElement( "testcase" );
			if( className.empty() ) {
				xml.writeAttribute( "classname", name );
				xml.writeAttribute( "name", "root" );
			}
			else {
				xml.writeAttribute( "classname", className );
				xml.writeAttribute( "name", name );
			}
			xml.writeAttribute( "time", ::Catch::Detail::stringify( sectionNode.stats.durationInSeconds ) );

			writeAssertions( sectionNode );

			if( !sectionNode.stdOut.empty() )
				xml.scopedElement( "system-out" ).writeText( trim( sectionNode.stdOut ), false );
			if( !sectionNode.stdErr.empty() )
				xml.scopedElement( "system-err" ).writeText( trim( sectionNode.stdErr ), false );
		}
		for( auto const& childNode : sectionNode.childSections )
			if( className.empty() )
				writeSection( name, "", *childNode );
			else
				writeSection( className, name, *childNode );
	}

	void JunitReporter::writeAssertions( SectionNode const& sectionNode ) {
		for( auto const& assertion : sectionNode.assertions )
			writeAssertion( assertion );
	}

	void JunitReporter::writeAssertion( AssertionStats const& stats ) {
		AssertionResult const& result = stats.assertionResult;
		if( !result.isOk() ) {
			std::string elementName;
			switch( result.getResultType() ) {
			case ResultWas::ThrewException:
			case ResultWas::FatalErrorCondition:
				elementName = "error";
				break;
			case ResultWas::ExplicitFailure:
				elementName = "failure";
				break;
			case ResultWas::ExpressionFailed:
				elementName = "failure";
				break;
			case ResultWas::DidntThrowException:
				elementName = "failure";
				break;

				// We should never see these here:
			case ResultWas::Info:
			case ResultWas::Warning:
			case ResultWas::Ok:
			case ResultWas::Unknown:
			case ResultWas::FailureBit:
			case ResultWas::Exception:
				elementName = "internalError";
				break;
			}

			XmlWriter::ScopedElement e = xml.scopedElement( elementName );

			xml.writeAttribute( "message", result.getExpandedExpression() );
			xml.writeAttribute( "type", result.getTestMacroName() );

			ReusableStringStream rss;
			if( !result.getMessage().empty() )
				rss << result.getMessage() << '\n';
			for( auto const& msg : stats.infoMessages )
				if( msg.type == ResultWas::Info )
					rss << msg.message << '\n';

			rss << "at " << result.getSourceInfo();
			xml.writeText( rss.str(), false );
		}
	}

	CATCH_REGISTER_REPORTER( "junit", JunitReporter )

} // end namespace Catch
  // end catch_reporter_junit.cpp
  // start catch_reporter_listening.cpp

#include <cassert>

namespace Catch {

	ListeningReporter::ListeningReporter() {
		// We will assume that listeners will always want all assertions
		m_preferences.shouldReportAllAssertions = true;
	}

	void ListeningReporter::addListener( IStreamingReporterPtr&& listener ) {
		m_listeners.push_back( std::move( listener ) );
	}

	void ListeningReporter::addReporter(IStreamingReporterPtr&& reporter) {
		assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
		m_reporter = std::move( reporter );
		m_preferences.shouldRedirectStdOut = m_reporter->getPreferences().shouldRedirectStdOut;
	}

	ReporterPreferences ListeningReporter::getPreferences() const {
		return m_preferences;
	}

	std::set<Verbosity> ListeningReporter::getSupportedVerbosities() {
		return std::set<Verbosity>{ };
	}

	void ListeningReporter::noMatchingTestCases( std::string const& spec ) {
		for ( auto const& listener : m_listeners ) {
			listener->noMatchingTestCases( spec );
		}
		m_reporter->noMatchingTestCases( spec );
	}

	void ListeningReporter::benchmarkStarting( BenchmarkInfo const& benchmarkInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->benchmarkStarting( benchmarkInfo );
		}
		m_reporter->benchmarkStarting( benchmarkInfo );
	}
	void ListeningReporter::benchmarkEnded( BenchmarkStats const& benchmarkStats ) {
		for ( auto const& listener : m_listeners ) {
			listener->benchmarkEnded( benchmarkStats );
		}
		m_reporter->benchmarkEnded( benchmarkStats );
	}

	void ListeningReporter::testRunStarting( TestRunInfo const& testRunInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->testRunStarting( testRunInfo );
		}
		m_reporter->testRunStarting( testRunInfo );
	}

	void ListeningReporter::testGroupStarting( GroupInfo const& groupInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->testGroupStarting( groupInfo );
		}
		m_reporter->testGroupStarting( groupInfo );
	}

	void ListeningReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->testCaseStarting( testInfo );
		}
		m_reporter->testCaseStarting( testInfo );
	}

	void ListeningReporter::sectionStarting( SectionInfo const& sectionInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->sectionStarting( sectionInfo );
		}
		m_reporter->sectionStarting( sectionInfo );
	}

	void ListeningReporter::assertionStarting( AssertionInfo const& assertionInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->assertionStarting( assertionInfo );
		}
		m_reporter->assertionStarting( assertionInfo );
	}

	// The return value indicates if the messages buffer should be cleared:
	bool ListeningReporter::assertionEnded( AssertionStats const& assertionStats ) {
		for( auto const& listener : m_listeners ) {
			static_cast<void>( listener->assertionEnded( assertionStats ) );
		}
		return m_reporter->assertionEnded( assertionStats );
	}

	void ListeningReporter::sectionEnded( SectionStats const& sectionStats ) {
		for ( auto const& listener : m_listeners ) {
			listener->sectionEnded( sectionStats );
		}
		m_reporter->sectionEnded( sectionStats );
	}

	void ListeningReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
		for ( auto const& listener : m_listeners ) {
			listener->testCaseEnded( testCaseStats );
		}
		m_reporter->testCaseEnded( testCaseStats );
	}

	void ListeningReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
		for ( auto const& listener : m_listeners ) {
			listener->testGroupEnded( testGroupStats );
		}
		m_reporter->testGroupEnded( testGroupStats );
	}

	void ListeningReporter::testRunEnded( TestRunStats const& testRunStats ) {
		for ( auto const& listener : m_listeners ) {
			listener->testRunEnded( testRunStats );
		}
		m_reporter->testRunEnded( testRunStats );
	}

	void ListeningReporter::skipTest( TestCaseInfo const& testInfo ) {
		for ( auto const& listener : m_listeners ) {
			listener->skipTest( testInfo );
		}
		m_reporter->skipTest( testInfo );
	}

	bool ListeningReporter::isMulti() const {
		return true;
	}

} // end namespace Catch
  // end catch_reporter_listening.cpp
  // start catch_reporter_xml.cpp

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4061) // Not all labels are EXPLICITLY handled in switch
  // Note that 4062 (not all labels are handled
  // and default is missing) is enabled
#endif

namespace Catch {
	XmlReporter::XmlReporter( ReporterConfig const& _config )
		:   StreamingReporterBase( _config ),
		m_xml(_config.stream())
	{
		m_reporterPrefs.shouldRedirectStdOut = true;
		m_reporterPrefs.shouldReportAllAssertions = true;
	}

	XmlReporter::~XmlReporter() = default;

	std::string XmlReporter::getDescription() {
		return "Reports test results as an XML document";
	}

	std::string XmlReporter::getStylesheetRef() const {
		return std::string();
	}

	void XmlReporter::writeSourceInfo( SourceLineInfo const& sourceInfo ) {
		m_xml
			.writeAttribute( "filename", sourceInfo.file )
			.writeAttribute( "line", sourceInfo.line );
	}

	void XmlReporter::noMatchingTestCases( std::string const& s ) {
		StreamingReporterBase::noMatchingTestCases( s );
	}

	void XmlReporter::testRunStarting( TestRunInfo const& testInfo ) {
		StreamingReporterBase::testRunStarting( testInfo );
		std::string stylesheetRef = getStylesheetRef();
		if( !stylesheetRef.empty() )
			m_xml.writeStylesheetRef( stylesheetRef );
		m_xml.startElement( "Catch" );
		if( !m_config->name().empty() )
			m_xml.writeAttribute( "name", m_config->name() );
		if( m_config->rngSeed() != 0 )
			m_xml.scopedElement( "Randomness" )
			.writeAttribute( "seed", m_config->rngSeed() );
	}

	void XmlReporter::testGroupStarting( GroupInfo const& groupInfo ) {
		StreamingReporterBase::testGroupStarting( groupInfo );
		m_xml.startElement( "Group" )
			.writeAttribute( "name", groupInfo.name );
	}

	void XmlReporter::testCaseStarting( TestCaseInfo const& testInfo ) {
		StreamingReporterBase::testCaseStarting(testInfo);
		m_xml.startElement( "TestCase" )
			.writeAttribute( "name", trim( testInfo.name ) )
			.writeAttribute( "description", testInfo.description )
			.writeAttribute( "tags", testInfo.tagsAsString() );

		writeSourceInfo( testInfo.lineInfo );

		if ( m_config->showDurations() == ShowDurations::Always )
			m_testCaseTimer.start();
		m_xml.ensureTagClosed();
	}

	void XmlReporter::sectionStarting( SectionInfo const& sectionInfo ) {
		StreamingReporterBase::sectionStarting( sectionInfo );
		if( m_sectionDepth++ > 0 ) {
			m_xml.startElement( "Section" )
				.writeAttribute( "name", trim( sectionInfo.name ) );
			writeSourceInfo( sectionInfo.lineInfo );
			m_xml.ensureTagClosed();
		}
	}

	void XmlReporter::assertionStarting( AssertionInfo const& ) { }

	bool XmlReporter::assertionEnded( AssertionStats const& assertionStats ) {

		AssertionResult const& result = assertionStats.assertionResult;

		bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

		if( includeResults || result.getResultType() == ResultWas::Warning ) {
			// Print any info messages in <Info> tags.
			for( auto const& msg : assertionStats.infoMessages ) {
				if( msg.type == ResultWas::Info && includeResults ) {
					m_xml.scopedElement( "Info" )
						.writeText( msg.message );
				} else if ( msg.type == ResultWas::Warning ) {
					m_xml.scopedElement( "Warning" )
						.writeText( msg.message );
				}
			}
		}

		// Drop out if result was successful but we're not printing them.
		if( !includeResults && result.getResultType() != ResultWas::Warning )
			return true;

		// Print the expression if there is one.
		if( result.hasExpression() ) {
			m_xml.startElement( "Expression" )
				.writeAttribute( "success", result.succeeded() )
				.writeAttribute( "type", result.getTestMacroName() );

			writeSourceInfo( result.getSourceInfo() );

			m_xml.scopedElement( "Original" )
				.writeText( result.getExpression() );
			m_xml.scopedElement( "Expanded" )
				.writeText( result.getExpandedExpression() );
		}

		// And... Print a result applicable to each result type.
		switch( result.getResultType() ) {
		case ResultWas::ThrewException:
			m_xml.startElement( "Exception" );
			writeSourceInfo( result.getSourceInfo() );
			m_xml.writeText( result.getMessage() );
			m_xml.endElement();
			break;
		case ResultWas::FatalErrorCondition:
			m_xml.startElement( "FatalErrorCondition" );
			writeSourceInfo( result.getSourceInfo() );
			m_xml.writeText( result.getMessage() );
			m_xml.endElement();
			break;
		case ResultWas::Info:
			m_xml.scopedElement( "Info" )
				.writeText( result.getMessage() );
			break;
		case ResultWas::Warning:
			// Warning will already have been written
			break;
		case ResultWas::ExplicitFailure:
			m_xml.startElement( "Failure" );
			writeSourceInfo( result.getSourceInfo() );
			m_xml.writeText( result.getMessage() );
			m_xml.endElement();
			break;
		default:
			break;
		}

		if( result.hasExpression() )
			m_xml.endElement();

		return true;
	}

	void XmlReporter::sectionEnded( SectionStats const& sectionStats ) {
		StreamingReporterBase::sectionEnded( sectionStats );
		if( --m_sectionDepth > 0 ) {
			XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResults" );
			e.writeAttribute( "successes", sectionStats.assertions.passed );
			e.writeAttribute( "failures", sectionStats.assertions.failed );
			e.writeAttribute( "expectedFailures", sectionStats.assertions.failedButOk );

			if ( m_config->showDurations() == ShowDurations::Always )
				e.writeAttribute( "durationInSeconds", sectionStats.durationInSeconds );

			m_xml.endElement();
		}
	}

	void XmlReporter::testCaseEnded( TestCaseStats const& testCaseStats ) {
		StreamingReporterBase::testCaseEnded( testCaseStats );
		XmlWriter::ScopedElement e = m_xml.scopedElement( "OverallResult" );
		e.writeAttribute( "success", testCaseStats.totals.assertions.allOk() );

		if ( m_config->showDurations() == ShowDurations::Always )
			e.writeAttribute( "durationInSeconds", m_testCaseTimer.getElapsedSeconds() );

		if( !testCaseStats.stdOut.empty() )
			m_xml.scopedElement( "StdOut" ).writeText( trim( testCaseStats.stdOut ), false );
		if( !testCaseStats.stdErr.empty() )
			m_xml.scopedElement( "StdErr" ).writeText( trim( testCaseStats.stdErr ), false );

		m_xml.endElement();
	}

	void XmlReporter::testGroupEnded( TestGroupStats const& testGroupStats ) {
		StreamingReporterBase::testGroupEnded( testGroupStats );
		// TODO: Check testGroupStats.aborting and act accordingly.
		m_xml.scopedElement( "OverallResults" )
			.writeAttribute( "successes", testGroupStats.totals.assertions.passed )
			.writeAttribute( "failures", testGroupStats.totals.assertions.failed )
			.writeAttribute( "expectedFailures", testGroupStats.totals.assertions.failedButOk );
		m_xml.endElement();
	}

	void XmlReporter::testRunEnded( TestRunStats const& testRunStats ) {
		StreamingReporterBase::testRunEnded( testRunStats );
		m_xml.scopedElement( "OverallResults" )
			.writeAttribute( "successes", testRunStats.totals.assertions.passed )
			.writeAttribute( "failures", testRunStats.totals.assertions.failed )
			.writeAttribute( "expectedFailures", testRunStats.totals.assertions.failedButOk );
		m_xml.endElement();
	}

	CATCH_REGISTER_REPORTER( "xml", XmlReporter )

} // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
  // end catch_reporter_xml.cpp

namespace Catch {
	LeakDetector leakDetector;
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_impl.hpp
#endif

#ifdef CATCH_CONFIG_MAIN
// start catch_default_main.hpp

#ifndef __OBJC__

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(_UNICODE) && !defined(DO_NOT_USE_WMAIN)
// Standard C/C++ Win32 Unicode wmain entry point
extern "C" int wmain (int argc, wchar_t * argv[], wchar_t * []) {
#else
// Standard C/C++ main entry point
int main (int argc, char * argv[]) {
#endif

	return Catch::Session().run( argc, argv );
}

#else // __OBJC__

// Objective-C entry point
int main (int argc, char * const argv[]) {
#if !CATCH_ARC_ENABLED
	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
#endif

	Catch::registerTestMethods();
	int result = Catch::Session().run( argc, (char**)argv );

#if !CATCH_ARC_ENABLED
	[pool drain];
#endif

	return result;
}

#endif // __OBJC__

// end catch_default_main.hpp
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)

#ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
#  undef CLARA_CONFIG_MAIN
#endif

#if !defined(CATCH_CONFIG_DISABLE)
//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define CATCH_REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

#define CATCH_REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "CATCH_REQUIRE_THROWS", Catch::ResultDisposition::Normal, "", __VA_ARGS__ )
#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
#define CATCH_REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
#endif// CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

#define CATCH_CHECK( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
#define CATCH_CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CATCH_CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CATCH_CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CATCH_CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

#define CATCH_CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CATCH_CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, "", __VA_ARGS__ )
#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CATCH_CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
#define CATCH_CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CATCH_CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CATCH_CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )

#define CATCH_REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CATCH_REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO( msg ) INTERNAL_CATCH_INFO( "CATCH_INFO", msg )
#define CATCH_WARN( msg ) INTERNAL_CATCH_MSG( "CATCH_WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
#define CATCH_CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CATCH_CAPTURE",__VA_ARGS__ )

#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
#define CATCH_METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
#define CATCH_REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
#define CATCH_SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
#define CATCH_DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
#define CATCH_FAIL( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define CATCH_FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CATCH_SUCCEED( ... ) INTERNAL_CATCH_MSG( "CATCH_SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
#define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
#else
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
#define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
#endif

#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define CATCH_STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__ ,      #__VA_ARGS__ );     CATCH_SUCCEED( #__VA_ARGS__ )
#define CATCH_STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); CATCH_SUCCEED( #__VA_ARGS__ )
#else
#define CATCH_STATIC_REQUIRE( ... )       CATCH_REQUIRE( __VA_ARGS__ )
#define CATCH_STATIC_REQUIRE_FALSE( ... ) CATCH_REQUIRE_FALSE( __VA_ARGS__ )
#endif

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO( ... ) CATCH_TEST_CASE( "Scenario: " __VA_ARGS__ )
#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )
#define CATCH_GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
#define CATCH_AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
#define CATCH_WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
#define CATCH_AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
#define CATCH_THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
#define CATCH_AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE( ... ) INTERNAL_CATCH_TEST( "REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__  )
#define REQUIRE_FALSE( ... ) INTERNAL_CATCH_TEST( "REQUIRE_FALSE", Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )

#define REQUIRE_THROWS( ... ) INTERNAL_CATCH_THROWS( "REQUIRE_THROWS", Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define REQUIRE_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "REQUIRE_THROWS_AS", exceptionType, Catch::ResultDisposition::Normal, expr )
#define REQUIRE_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "REQUIRE_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::Normal, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, __VA_ARGS__ )

#define CHECK( ... ) INTERNAL_CATCH_TEST( "CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_FALSE( ... ) INTERNAL_CATCH_TEST( "CHECK_FALSE", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::FalseTest, __VA_ARGS__ )
#define CHECKED_IF( ... ) INTERNAL_CATCH_IF( "CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECKED_ELSE( ... ) INTERNAL_CATCH_ELSE( "CHECKED_ELSE", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_NOFAIL( ... ) INTERNAL_CATCH_TEST( "CHECK_NOFAIL", Catch::ResultDisposition::ContinueOnFailure | Catch::ResultDisposition::SuppressFail, __VA_ARGS__ )

#define CHECK_THROWS( ... )  INTERNAL_CATCH_THROWS( "CHECK_THROWS", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define CHECK_THROWS_AS( expr, exceptionType ) INTERNAL_CATCH_THROWS_AS( "CHECK_THROWS_AS", exceptionType, Catch::ResultDisposition::ContinueOnFailure, expr )
#define CHECK_THROWS_WITH( expr, matcher ) INTERNAL_CATCH_THROWS_STR_MATCHES( "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) INTERNAL_CATCH_THROWS_MATCHES( "CHECK_THROWS_MATCHES", exceptionType, Catch::ResultDisposition::ContinueOnFailure, matcher, expr )
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW( ... ) INTERNAL_CATCH_NO_THROW( "CHECK_NOTHROW", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "CHECK_THAT", matcher, Catch::ResultDisposition::ContinueOnFailure, arg )

#define REQUIRE_THAT( arg, matcher ) INTERNAL_CHECK_THAT( "REQUIRE_THAT", matcher, Catch::ResultDisposition::Normal, arg )
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO( msg ) INTERNAL_CATCH_INFO( "INFO", msg )
#define WARN( msg ) INTERNAL_CATCH_MSG( "WARN", Catch::ResultWas::Warning, Catch::ResultDisposition::ContinueOnFailure, msg )
#define CAPTURE( ... ) INTERNAL_CATCH_CAPTURE( INTERNAL_CATCH_UNIQUE_NAME(capturer), "CAPTURE",__VA_ARGS__ )

#define TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE( __VA_ARGS__ )
#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, __VA_ARGS__ )
#define METHOD_AS_TEST_CASE( method, ... ) INTERNAL_CATCH_METHOD_AS_TEST_CASE( method, __VA_ARGS__ )
#define REGISTER_TEST_CASE( Function, ... ) INTERNAL_CATCH_REGISTER_TESTCASE( Function, __VA_ARGS__ )
#define SECTION( ... ) INTERNAL_CATCH_SECTION( __VA_ARGS__ )
#define DYNAMIC_SECTION( ... ) INTERNAL_CATCH_DYNAMIC_SECTION( __VA_ARGS__ )
#define FAIL( ... ) INTERNAL_CATCH_MSG( "FAIL", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::Normal, __VA_ARGS__ )
#define FAIL_CHECK( ... ) INTERNAL_CATCH_MSG( "FAIL_CHECK", Catch::ResultWas::ExplicitFailure, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define SUCCEED( ... ) INTERNAL_CATCH_MSG( "SUCCEED", Catch::ResultWas::Ok, Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__ )
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ )
#define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ )
#else
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE( __VA_ARGS__ ) )
#define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD( className, __VA_ARGS__ ) )
#endif

#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define STATIC_REQUIRE( ... )       static_assert(   __VA_ARGS__,  #__VA_ARGS__ ); SUCCEED( #__VA_ARGS__ )
#define STATIC_REQUIRE_FALSE( ... ) static_assert( !(__VA_ARGS__), "!(" #__VA_ARGS__ ")" ); SUCCEED( "!(" #__VA_ARGS__ ")" )
#else
#define STATIC_REQUIRE( ... )       REQUIRE( __VA_ARGS__ )
#define STATIC_REQUIRE_FALSE( ... ) REQUIRE_FALSE( __VA_ARGS__ )
#endif

#endif

#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION( signature )

// "BDD-style" convenience wrappers
#define SCENARIO( ... ) TEST_CASE( "Scenario: " __VA_ARGS__ )
#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TEST_CASE_METHOD( className, "Scenario: " __VA_ARGS__ )

#define GIVEN( desc )     INTERNAL_CATCH_DYNAMIC_SECTION( "    Given: " << desc )
#define AND_GIVEN( desc ) INTERNAL_CATCH_DYNAMIC_SECTION( "And given: " << desc )
#define WHEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     When: " << desc )
#define AND_WHEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( " And when: " << desc )
#define THEN( desc )      INTERNAL_CATCH_DYNAMIC_SECTION( "     Then: " << desc )
#define AND_THEN( desc )  INTERNAL_CATCH_DYNAMIC_SECTION( "      And: " << desc )

using Catch::Detail::Approx;

#else // CATCH_CONFIG_DISABLE

//////
// If this config identifier is defined then all CATCH macros are prefixed with CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE( ... )        (void)(0)
#define CATCH_REQUIRE_FALSE( ... )  (void)(0)

#define CATCH_REQUIRE_THROWS( ... ) (void)(0)
#define CATCH_REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
#define CATCH_REQUIRE_THROWS_WITH( expr, matcher )     (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif// CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW( ... ) (void)(0)

#define CATCH_CHECK( ... )         (void)(0)
#define CATCH_CHECK_FALSE( ... )   (void)(0)
#define CATCH_CHECKED_IF( ... )    if (__VA_ARGS__)
#define CATCH_CHECKED_ELSE( ... )  if (!(__VA_ARGS__))
#define CATCH_CHECK_NOFAIL( ... )  (void)(0)

#define CATCH_CHECK_THROWS( ... )  (void)(0)
#define CATCH_CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
#define CATCH_CHECK_THROWS_WITH( expr, matcher )     (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW( ... ) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT( arg, matcher )   (void)(0)

#define CATCH_REQUIRE_THAT( arg, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO( msg )    (void)(0)
#define CATCH_WARN( msg )    (void)(0)
#define CATCH_CAPTURE( msg ) (void)(0)

#define CATCH_TEST_CASE( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_METHOD_AS_TEST_CASE( method, ... )
#define CATCH_REGISTER_TEST_CASE( Function, ... ) (void)(0)
#define CATCH_SECTION( ... )
#define CATCH_DYNAMIC_SECTION( ... )
#define CATCH_FAIL( ... ) (void)(0)
#define CATCH_FAIL_CHECK( ... ) (void)(0)
#define CATCH_SUCCEED( ... ) (void)(0)

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) )
#define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), className )
#else
#define CATCH_TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) ) )
#define CATCH_TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), className ) )
#endif

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define CATCH_SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )
#define CATCH_GIVEN( desc )
#define CATCH_AND_GIVEN( desc )
#define CATCH_WHEN( desc )
#define CATCH_AND_WHEN( desc )
#define CATCH_THEN( desc )
#define CATCH_AND_THEN( desc )

#define CATCH_STATIC_REQUIRE( ... )       (void)(0)
#define CATCH_STATIC_REQUIRE_FALSE( ... ) (void)(0)

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not required
#else

#define REQUIRE( ... )       (void)(0)
#define REQUIRE_FALSE( ... ) (void)(0)

#define REQUIRE_THROWS( ... ) (void)(0)
#define REQUIRE_THROWS_AS( expr, exceptionType ) (void)(0)
#define REQUIRE_THROWS_WITH( expr, matcher ) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW( ... ) (void)(0)

#define CHECK( ... ) (void)(0)
#define CHECK_FALSE( ... ) (void)(0)
#define CHECKED_IF( ... ) if (__VA_ARGS__)
#define CHECKED_ELSE( ... ) if (!(__VA_ARGS__))
#define CHECK_NOFAIL( ... ) (void)(0)

#define CHECK_THROWS( ... )  (void)(0)
#define CHECK_THROWS_AS( expr, exceptionType ) (void)(0)
#define CHECK_THROWS_WITH( expr, matcher ) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES( expr, exceptionType, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW( ... ) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT( arg, matcher ) (void)(0)

#define REQUIRE_THAT( arg, matcher ) (void)(0)
#endif // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO( msg ) (void)(0)
#define WARN( msg ) (void)(0)
#define CAPTURE( msg ) (void)(0)

#define TEST_CASE( ... )  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))
#define METHOD_AS_TEST_CASE( method, ... )
#define REGISTER_TEST_CASE( Function, ... ) (void)(0)
#define SECTION( ... )
#define DYNAMIC_SECTION( ... )
#define FAIL( ... ) (void)(0)
#define FAIL_CHECK( ... ) (void)(0)
#define SUCCEED( ... ) (void)(0)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) )
#define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), className )
#else
#define TEMPLATE_TEST_CASE( ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ) ) )
#define TEMPLATE_TEST_CASE_METHOD( className, ... ) INTERNAL_CATCH_EXPAND_VARGS( INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____ ), className ) )
#endif

#define STATIC_REQUIRE( ... )       (void)(0)
#define STATIC_REQUIRE_FALSE( ... ) (void)(0)

#endif

#define CATCH_TRANSLATE_EXCEPTION( signature ) INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG( INTERNAL_CATCH_UNIQUE_NAME( catch_internal_ExceptionTranslator ), signature )

// "BDD-style" convenience wrappers
#define SCENARIO( ... ) INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ) )
#define SCENARIO_METHOD( className, ... ) INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(INTERNAL_CATCH_UNIQUE_NAME( ____C_A_T_C_H____T_E_S_T____ ), className )

#define GIVEN( desc )
#define AND_GIVEN( desc )
#define WHEN( desc )
#define AND_WHEN( desc )
#define THEN( desc )
#define AND_THEN( desc )

using Catch::Detail::Approx;

#endif

#endif // ! CATCH_CONFIG_IMPL_ONLY

// start catch_reenable_warnings.h


#ifdef __clang__
#    ifdef __ICC // icpc defines the __clang__ macro
#        pragma warning(pop)
#    else
#        pragma clang diagnostic pop
#    endif
#elif defined __GNUC__
#    pragma GCC diagnostic pop
#endif

// end catch_reenable_warnings.h
// end catch.hpp
#endif // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED

